Difference between UMPT and CMPT?

BetterMing · Created Jul 5, 2020 07:24:00

Hello, dear.

Provide the following information for your reference:

CMPT (4 E1/T1)

The CDMA main processing and transmission unit (CMPT) transmits data between the base station and the base station controller, controls and manages the entire base station system (BSS), and provides clock signals for the BSS.

Panel

Figure 1 shows the exterior of the CMPT (4 E1/T1).

Figure 1 CMPT (4 E1/T1)

(1) ETH port	(2) FE0 port	(3) FE1 port	(4) USB port
(5) TST port	(6) E1/T1 port	(7) GPS port

Functions

The CMPT performs the following functions:

Performs operation and maintenance (OM) functions, such as configuration management, equipment management, performance monitoring, signaling processing, and active/standby switchovers, and provides an OM channel between the base station and operation and maintenance center (OMC), such as the local maintenance terminal (LMT) or U2000.
Provides a reference clock for the BSS.
Provides signaling and resource management functions for other boards in the BBU.
Provides a universal serial bus (USB) port. During software installation and data configuration, inserting a USB flash drive into the USB port enables the automatic upgrade of base station software.
Provides one port for four E1/T1 signals. The port supports asynchronous transfer mode (ATM) and IP transmission.
Provides one FE electrical port and one FE optical port supporting IP transmission.

Indicators

Table 1 describes the meaning of the status of the indicators on the CPMT panel.

**Table 1** Ports on the CMPT (4 E1/T1)
Indicator	Color	Meaning	Description
RUN	Green	Operation indicator	Steady on: There is power input, but the board is faulty. Steady off: There is no power input or the board is faulty. Blinks at 0.5 Hz: The board is working properly. Blinks at 4 Hz: The board is loading or not working.
ALM	Red	Alarm indicator	Steady on: An alarm is generated, and the board needs to be replaced. Blinks at 0.5 Hz: An alarm is generated. Steady off: No alarm is generated.
ACT	Green	Active/standby indicator	Steady on: The board is in the active state. Steady off: The board is in the standby state. Blinks at 4 Hz: The OML is disconnected.
FE0/ETH (LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE0/ETH (ACK)	Green	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.
FE1 (LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE1 (ACK)	Green	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.

Ports

Table 2 describes the ports on the CPMT.

**Table 2** Ports on the CMPT (4 E1/T1)
Port	Description
ETH	For commissioning
TST	For clock test
USB	Reserved for locally loading BTS software
E1/T1	For transmitting E1/T1 signals
FE0	For transmitting FE signals using electrical cables.
FE1	For receiving FE signals using an optical fiber. A swappable optical module is required. NOTE: Note that FE0 and FE1 ports cannot be used simultaneously. For a BTS3901A cabinet, Ethernet cables are supported but a swappable optical module must be installed.
GPS	For connecting to the GPS antenna

DIP Switches

The CMPT has two DIP switches: SW1 and SW2. The SW1 switch is used for setting the working mode of the E1/T1 port, and the SW2 controls the grounding of the signal cable connected to the four-E1/T1-signal port working in E1 or T1 mode. Figure 2 shows the DIP switches on the CMPT.

Figure 2 DIP switches on the CMPT

Table 3 describes the settings of DIP switches on the CMPT.

**Table 3** Settings of the DIP switches on the CMPT (4 E1/T1)
SN	Function	Description
SW1	Used to set the impedance of the E1/T1 port.	100-ohm twisted pair cable: Bits 1 and 2 are set to ON, and bits 3 and 4 are set to OFF. 120-ohm twisted pair cable: Bits 1 and 2 are set to OFF, and bits 3 and 4 are set to ON. 75-ohm coaxial cable: Bits 1, 2, 3, and 4 are set to ON. Bit settings in other scenarios are not used.
SW2	Used to set grounding of the signal cable.	Coaxial cable whose RX sheath is grounded: Bits 1, 2, 3, and 4 are set to ON. Coaxial cable whose RX sheath is not grounded: Bits 1, 2, 3, and 4 are set to OFF. Twisted pair cable: Bits 1, 2, 3, and 4 are set to OFF. NOTE: The RX sheath of the coaxial cable is not grounded by default, and is grounded only when the peer TX sheath is not grounded.

Technical Specifications

Technical specifications of the CMPT (4 E1/T1) are as follows:

Dimensions (H x W x D): 20.32 mm x 280.00 mm x 144.45 mm (0.80 in. x 11.02 in. x 5.69 in.)
Operating voltage: +12 V DC
Power consumption: ≤ 25 W

CMPT (8 E1/T1)

The CDMA main processing and transmission unit (CMPT) transmits data between the base station and the base station controller, controls and manages the entire base station system (BSS), and provides clock signals for the BSS.

Panel

Figure 2 shows the CPMT panel.

Figure 1 CMPT (8 E1/T1)

(1) ETH port	(2) FE0 port	(3) USB port
(4) TST port	(5) E1/T1 port	(6) GPS port

Functions

The CMPT performs the following functions:

Performs operation and maintenance (OM) functions, such as configuration management, equipment management, performance monitoring, signaling processing, and active/standby switchovers, and provides an OM channel between the base station and operation and maintenance center (OMC), such as the local maintenance terminal (LMT) or U2000.
Provides a reference clock for the BSS.
Provides signaling and resource management functions for other boards in the BBU.
Provides a universal serial bus (USB) port. During software installation and data configuration, inserting a USB flash drive into the USB port enables the automatic upgrade of base station software.
Provides one port for eight E1/T1 signals. The port supports IP transmission.
Provides one port for one FE electrical signal. The port supports IP transmission.

Indicators

Table 1 shows the indicators on the CMPT (8 E1/T1).

**Table 1** Indicators on the CMPT
Indicator	Color	Meaning	Description
RUN	Green	Operation indicator	Steady on: There is power input, but the board is faulty. Steady off: There is no power input or the board is faulty. Blinks at 0.5 Hz: The board is working properly. Blinks at 4 Hz: The board is loading or not working.
ALM	Red	Alarm indicator	Steady on: An alarm is generated, and the board needs to be replaced. Blinks at 0.5 Hz: An alarm is generated. Steady off: No alarm is generated.
ACT	Green	Active/standby indicator	Steady on: The board is in the active state. Steady off: The board is in the standby state. Blinks at 4 Hz: The OML is disconnected.
L01	Green	Operation indicator of E1 links 0 and 1	Steady off: Link 0 or 1 is not set up, or an LOS alarm is generated. Steady on: Links 0 and 1 are set up and work properly. Blinking at 0.5 Hz: Link 0 works properly, but link 1 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 1 works properly, but link 0 is not set up or an LOS alarm is generated.
L23	Green	Operation indicator of E1 links 2 and 3	Steady off: Link 2 or 3 is not set up, or an LOS alarm is generated. Steady on: Links 2 and 3 are set up and work properly. Blinking at 0.5 Hz: Link 2 works properly, but link 3 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 3 works properly, but link 2 is not set up or an LOS alarm is generated.
L45	Green	Operation indicator of E1 links 4 and 5	Steady off: Link 4 or 5 is not set up, or an LOS alarm is generated. Steady on: Links 4 and 5 are set up and work properly. Blinking at 0.5 Hz: Link 4 works properly, but link 5 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 5 works properly, but link 4 is not set up or an LOS alarm is generated.
L67	Green	Operation indicator of E1 links 6 and 7	Steady off: Link 6 or 7 is not set up, or an LOS alarm is generated. Steady on: Links 6 and 7 are set up and work properly. Blinking at 0.5 Hz: Link 6 works properly, but link 7 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 7 works properly, but link 6 is not set up or an LOS alarm is generated.
FE0/ETH(LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE0/ETH(ACK)	Yellow	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.

Ports

Table 2 shows the ports on the CMPT (8 E1/T1).

**Table 2** Ports on the CMPT (8 E1/T1)
Port	Description
ETH	For commissioning
TST	For clock test
USB	Reserved for locally loading BTS software
E1/T1	For transmitting E1/T1 signals
FE0	For transmitting FE signals using electrical cables.
GPS	For connecting to the GPS antenna

DIP Switches

Figure 2 shows the DIP switches on the CMPT.

Figure 2 DIP switches on the CMPT (8 E1/T1)

Table 3 describes settings of DIP switches on the CMPT (8 E1/T1).

**Table 3** Settings of the DIP switches on the CMPT (8 E1/T1)
SN	Function	Description
SW1	Used to set the impedance of the E1/T1 port.	100-ohm twisted pair cable: Bits 1 and 2 are set to ON, and bits 3 and 4 are set to OFF. 120-ohm twisted pair cable: Bits 1 and 2 are set to OFF, and bits 3 and 4 are set to ON. 75-ohm coaxial cable: Bits 1, 2, 3, and 4 are set to ON. Bit settings in other scenarios are not used.
SW2/SW3	Used to set grounding of the signal cable.	Coaxial cable whose RX sheath is grounded: Bits 1, 2, 3, and 4 are set to ON. Coaxial cable whose RX sheath is not grounded: Bits 1, 2, 3, and 4 are set to OFF. Twisted pair cable: Bits 1, 2, 3, and 4 are set to OFF. NOTE: The RX sheath of the coaxial cable is not grounded by default, and is grounded only when the peer TX sheath is not grounded.

Technical Specifications

Technical specifications of the CMPT (8 E1/T1) are as follows:

Dimensions (H x W x D): 20.32 mm x 280.00 mm x 144.45 mm (0.80 in. x 11.02 in. x 5.69 in.)
Operating voltage: +12 V DC
Power consumption: ≤ 25 W

little_fish · Created Jul 5, 2020 06:30:16

hi we are working on it.

BetterMing · Created Jul 5, 2020 07:24:00

Hello, dear.

Provide the following information for your reference:

CMPT (4 E1/T1)

The CDMA main processing and transmission unit (CMPT) transmits data between the base station and the base station controller, controls and manages the entire base station system (BSS), and provides clock signals for the BSS.

Panel

Figure 1 shows the exterior of the CMPT (4 E1/T1).

Figure 1 CMPT (4 E1/T1)

(1) ETH port	(2) FE0 port	(3) FE1 port	(4) USB port
(5) TST port	(6) E1/T1 port	(7) GPS port

Functions

The CMPT performs the following functions:

Performs operation and maintenance (OM) functions, such as configuration management, equipment management, performance monitoring, signaling processing, and active/standby switchovers, and provides an OM channel between the base station and operation and maintenance center (OMC), such as the local maintenance terminal (LMT) or U2000.
Provides a reference clock for the BSS.
Provides signaling and resource management functions for other boards in the BBU.
Provides a universal serial bus (USB) port. During software installation and data configuration, inserting a USB flash drive into the USB port enables the automatic upgrade of base station software.
Provides one port for four E1/T1 signals. The port supports asynchronous transfer mode (ATM) and IP transmission.
Provides one FE electrical port and one FE optical port supporting IP transmission.

Indicators

Table 1 describes the meaning of the status of the indicators on the CPMT panel.

**Table 1** Ports on the CMPT (4 E1/T1)
Indicator	Color	Meaning	Description
RUN	Green	Operation indicator	Steady on: There is power input, but the board is faulty. Steady off: There is no power input or the board is faulty. Blinks at 0.5 Hz: The board is working properly. Blinks at 4 Hz: The board is loading or not working.
ALM	Red	Alarm indicator	Steady on: An alarm is generated, and the board needs to be replaced. Blinks at 0.5 Hz: An alarm is generated. Steady off: No alarm is generated.
ACT	Green	Active/standby indicator	Steady on: The board is in the active state. Steady off: The board is in the standby state. Blinks at 4 Hz: The OML is disconnected.
FE0/ETH (LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE0/ETH (ACK)	Green	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.
FE1 (LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE1 (ACK)	Green	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.

Ports

Table 2 describes the ports on the CPMT.

**Table 2** Ports on the CMPT (4 E1/T1)
Port	Description
ETH	For commissioning
TST	For clock test
USB	Reserved for locally loading BTS software
E1/T1	For transmitting E1/T1 signals
FE0	For transmitting FE signals using electrical cables.
FE1	For receiving FE signals using an optical fiber. A swappable optical module is required. NOTE: Note that FE0 and FE1 ports cannot be used simultaneously. For a BTS3901A cabinet, Ethernet cables are supported but a swappable optical module must be installed.
GPS	For connecting to the GPS antenna

DIP Switches

The CMPT has two DIP switches: SW1 and SW2. The SW1 switch is used for setting the working mode of the E1/T1 port, and the SW2 controls the grounding of the signal cable connected to the four-E1/T1-signal port working in E1 or T1 mode. Figure 2 shows the DIP switches on the CMPT.

Figure 2 DIP switches on the CMPT

Table 3 describes the settings of DIP switches on the CMPT.

**Table 3** Settings of the DIP switches on the CMPT (4 E1/T1)
SN	Function	Description
SW1	Used to set the impedance of the E1/T1 port.	100-ohm twisted pair cable: Bits 1 and 2 are set to ON, and bits 3 and 4 are set to OFF. 120-ohm twisted pair cable: Bits 1 and 2 are set to OFF, and bits 3 and 4 are set to ON. 75-ohm coaxial cable: Bits 1, 2, 3, and 4 are set to ON. Bit settings in other scenarios are not used.
SW2	Used to set grounding of the signal cable.	Coaxial cable whose RX sheath is grounded: Bits 1, 2, 3, and 4 are set to ON. Coaxial cable whose RX sheath is not grounded: Bits 1, 2, 3, and 4 are set to OFF. Twisted pair cable: Bits 1, 2, 3, and 4 are set to OFF. NOTE: The RX sheath of the coaxial cable is not grounded by default, and is grounded only when the peer TX sheath is not grounded.

Technical Specifications

Technical specifications of the CMPT (4 E1/T1) are as follows:

Dimensions (H x W x D): 20.32 mm x 280.00 mm x 144.45 mm (0.80 in. x 11.02 in. x 5.69 in.)
Operating voltage: +12 V DC
Power consumption: ≤ 25 W

CMPT (8 E1/T1)

The CDMA main processing and transmission unit (CMPT) transmits data between the base station and the base station controller, controls and manages the entire base station system (BSS), and provides clock signals for the BSS.

Panel

Figure 2 shows the CPMT panel.

Figure 1 CMPT (8 E1/T1)

(1) ETH port	(2) FE0 port	(3) USB port
(4) TST port	(5) E1/T1 port	(6) GPS port

Functions

The CMPT performs the following functions:

Performs operation and maintenance (OM) functions, such as configuration management, equipment management, performance monitoring, signaling processing, and active/standby switchovers, and provides an OM channel between the base station and operation and maintenance center (OMC), such as the local maintenance terminal (LMT) or U2000.
Provides a reference clock for the BSS.
Provides signaling and resource management functions for other boards in the BBU.
Provides a universal serial bus (USB) port. During software installation and data configuration, inserting a USB flash drive into the USB port enables the automatic upgrade of base station software.
Provides one port for eight E1/T1 signals. The port supports IP transmission.
Provides one port for one FE electrical signal. The port supports IP transmission.

Indicators

Table 1 shows the indicators on the CMPT (8 E1/T1).

**Table 1** Indicators on the CMPT
Indicator	Color	Meaning	Description
RUN	Green	Operation indicator	Steady on: There is power input, but the board is faulty. Steady off: There is no power input or the board is faulty. Blinks at 0.5 Hz: The board is working properly. Blinks at 4 Hz: The board is loading or not working.
ALM	Red	Alarm indicator	Steady on: An alarm is generated, and the board needs to be replaced. Blinks at 0.5 Hz: An alarm is generated. Steady off: No alarm is generated.
ACT	Green	Active/standby indicator	Steady on: The board is in the active state. Steady off: The board is in the standby state. Blinks at 4 Hz: The OML is disconnected.
L01	Green	Operation indicator of E1 links 0 and 1	Steady off: Link 0 or 1 is not set up, or an LOS alarm is generated. Steady on: Links 0 and 1 are set up and work properly. Blinking at 0.5 Hz: Link 0 works properly, but link 1 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 1 works properly, but link 0 is not set up or an LOS alarm is generated.
L23	Green	Operation indicator of E1 links 2 and 3	Steady off: Link 2 or 3 is not set up, or an LOS alarm is generated. Steady on: Links 2 and 3 are set up and work properly. Blinking at 0.5 Hz: Link 2 works properly, but link 3 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 3 works properly, but link 2 is not set up or an LOS alarm is generated.
L45	Green	Operation indicator of E1 links 4 and 5	Steady off: Link 4 or 5 is not set up, or an LOS alarm is generated. Steady on: Links 4 and 5 are set up and work properly. Blinking at 0.5 Hz: Link 4 works properly, but link 5 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 5 works properly, but link 4 is not set up or an LOS alarm is generated.
L67	Green	Operation indicator of E1 links 6 and 7	Steady off: Link 6 or 7 is not set up, or an LOS alarm is generated. Steady on: Links 6 and 7 are set up and work properly. Blinking at 0.5 Hz: Link 6 works properly, but link 7 is not set up or an LOS alarm is generated. Blinking at 4 Hz: Link 7 works properly, but link 6 is not set up or an LOS alarm is generated.
FE0/ETH(LINK)	Green	Port indicator	Steady on: The port is securely connected. Steady off: The link is not connected.
FE0/ETH(ACK)	Yellow	Port indicator	Blinks: Data is transmitted on the link. Steady off: No data is being transmitted or received.

Ports

Table 2 shows the ports on the CMPT (8 E1/T1).

**Table 2** Ports on the CMPT (8 E1/T1)
Port	Description
ETH	For commissioning
TST	For clock test
USB	Reserved for locally loading BTS software
E1/T1	For transmitting E1/T1 signals
FE0	For transmitting FE signals using electrical cables.
GPS	For connecting to the GPS antenna

DIP Switches

Figure 2 shows the DIP switches on the CMPT.

Figure 2 DIP switches on the CMPT (8 E1/T1)

Table 3 describes settings of DIP switches on the CMPT (8 E1/T1).

**Table 3** Settings of the DIP switches on the CMPT (8 E1/T1)
SN	Function	Description
SW1	Used to set the impedance of the E1/T1 port.	100-ohm twisted pair cable: Bits 1 and 2 are set to ON, and bits 3 and 4 are set to OFF. 120-ohm twisted pair cable: Bits 1 and 2 are set to OFF, and bits 3 and 4 are set to ON. 75-ohm coaxial cable: Bits 1, 2, 3, and 4 are set to ON. Bit settings in other scenarios are not used.
SW2/SW3	Used to set grounding of the signal cable.	Coaxial cable whose RX sheath is grounded: Bits 1, 2, 3, and 4 are set to ON. Coaxial cable whose RX sheath is not grounded: Bits 1, 2, 3, and 4 are set to OFF. Twisted pair cable: Bits 1, 2, 3, and 4 are set to OFF. NOTE: The RX sheath of the coaxial cable is not grounded by default, and is grounded only when the peer TX sheath is not grounded.

Technical Specifications

Technical specifications of the CMPT (8 E1/T1) are as follows:

Dimensions (H x W x D): 20.32 mm x 280.00 mm x 144.45 mm (0.80 in. x 11.02 in. x 5.69 in.)
Operating voltage: +12 V DC
Power consumption: ≤ 25 W

BetterMing · Created Jul 6, 2020 03:11:34

UMPT (CO)

The UMPT (CO) is the CDMA main processing and transmission unit. It transmits data between the base station and the base station controller, controls and manages the entire base station system (BSS), and provides clock signals for the BSS.

Panel

Figure 1 shows a UMPT (CO) panel.

Figure 1 Panel

(1) FE/GE0 port	(2) FE/GE1 port	(3) CI port	(4) USB port
(5) CLK port	(6) E1/T1 port	(7) GPS port	-

Functions

The UMPT (CO) performs the following functions:

Performs operation and maintenance (O&M) functions, such as configuration management, equipment management, performance monitoring, signaling processing, and active/standby switchovers, and provides an O&M channel between the base station and operation and maintenance center (OMC), such as the LMT or U2000.
Provides a reference clock for the BSS.
Provides signaling and resource management functions for other boards in the BBU.
Provides the universal serial bus (USB) port, into which a USB flash drive can be inserted to enable the automatic upgrade of base station software during software installation and data configuration.
Provides one port for four E1/T1 signals. The port supports data transmission based on IP protocols.
Provides one FE/GE electrical port and one FE/GE optical port supporting data transmission based on IP protocols.

Indicators

Table 1 lists the indicators on a UMPT (CO).

**Table 1** Indicators on the UMPT (CO)
Indicator	Color	Meaning	Description
RUN	Green	Operation indicator	Steady on: There is power input, but the board is faulty. Steady off: There is no power input, or the board is faulty. Blinks at 0.5 Hz: The board is working properly. Blinks at 4 Hz: The board is loading or not working.
ALM	Red	Alarm indicator	Steady on: An alarm is generated, indicating that the board must be replaced. Steady off: No alarm is generated. Blinks at 0.5 Hz: An alarm is generated, but whether to replace the board is uncertain.
ACT	Green	Active/standby indicator	Steady on: The board works in active mode. Steady off: The board works in standby mode. The board is not activated. The board does not provide services. Blinks at 4 Hz: The operation and maintenance link (OML) is disconnected.

In addition to the three indicators mentioned above, some other indicators are used for indicating the status of links on the FE/GE electrical ports, FE/GE optical ports, interconnection ports, and E1/T1 ports. The silkscreen for the FE/GE electrical port or FE/GE optical port is not on the panel, but on one side of each port, as shown in Figure 2.

Figure 2 Port indicator

Table 2 lists the port indicators on the UMPT (CO) panel.

**Table 2** Indicator meaning
Indicator	Color	Meaning	Description
LINK on an optical port	Green	Optical port connection	Steady on: The link is correctly connected. Steady off: The link is incorrectly connected.
ACT on an optical port	Orange	Optical port transmission	Steady on: Data is being transmitted. Steady off: No data is transmitted.
LINK (for an electrical port)	Green	Electrical port connection	Steady on: The link is correctly connected. Steady off: The link is incorrectly connected.
ACT (for an electrical port)	Orange	Electrical port transmission	Steady on: Data is being transmitted. Steady off: No data is transmitted.
CI	Red or green	It is reserved.	-
R0	Red or green	Mode indicator	Steady off: The board does not work in CDMA mode. Steady on: The board works in CDMA mode.
R1	Red or green	Mode indicator	It is reserved.
R2	Red or green	Mode indicator	Steady off: The board does not work in LTE mode. Steady green: The board works in LTE mode.
L01	Red or green	Indicator for E1/T1 links 0 and 1	Steady off: Link 0 or 1 for the E1/T1 is not set up, or an LOS alarm is generated. Steady green: Links 0 and 1 are set up and work properly. Blinking green at 0.5 Hz: Link 0 works properly, but link 1 is not set up or an LOS alarm is generated. Blinking green at 4 Hz: Link 1 works properly, but link 0 is not set up or an LOS alarm is generated. Steady red: LOS alarms for links 0 and 1 are generated. Blinking red at 0.5 Hz: An LOS alarm for link 0 is generated. Blinking red at 4 Hz: An LOS alarm for link 1 is generated.
L23	Red or green	Indicator for E1/T1 links 2 and 3	Steady off: Link 2 or 3 is not set up, or an LOS alarm is generated. Steady green: Links 2 and 3 are set up and work properly. Blinking green at 0.5 Hz: Link 2 works properly, but link 3 is not set up or an LOS alarm is generated. Blinking green at 4 Hz: Link 3 works properly, but link 2 is not set up or an LOS alarm is generated. Steady red: LOS alarms for links 2 and 3 are generated. Blinking red at 0.5 Hz: An LOS alarm for link 2 is generated. Blinking red at 4 Hz: An LOS alarm for link 3 is generated.

Ports

Table 3 lists ports on the UMPT (CO).

**Table 3** Ports on a UMPT (CO)
Port	Description
FE/GE0	FE/GE signal ports: Electrical cables are supported.
FE/GE1	FE/GE signal port: Optical fibers are supported (a swappable optical module required). NOTE: The FE/GE0 port and FE/GE1 port cannot be used simultaneously. Ethernet cables are also supported in the BTS3901A (an optical-to-electrical conversion module required).
USB	Reserved for locally loading base station software
CLK	Used for TOD and test clock multiplexing.
E1/T1	E1/T1 signal port
GPS	Used for connecting to the GPS antenna
CI	The port is used for BBU interconnection.

Technical Specifications

Technical specifications of a UMPT (CO) are as follows:

Dimensions (H x W x D): 20.32 mm x 280.00 mm x 144.45 mm (0.80 in. x 11.02 in. x 5.69 in.)
Operating voltage: +12 V DC
Power consumption: ≤ 55 W

UMPT (LO)

The UMPT (LO)is a main processing and transmission board in the BBU working in LTE mode. It manages the entire eNodeB by performing the operation and maintenance (O&M), processing signaling, and synchronizing clocks for the BBU.

Specifications

Transmission specifications of the UMPT: see Table 1
Signaling specifications (CAPS): 120
Maximum RRC_connected users: 10800
Maximum number of data radio bearers: three times the maximum number of RRC_connected users

**Table 1** Transmission specifications of the UMPT
Transmission Mode	Port Quantity	Port Capacity	Full/Half-Duplex
IP over E1/T1	1	Four channels	-
Transmission over FE/GE electrical ports	1	10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s	Full-duplex
Transmission over FE/GE optical ports	1	100 Mbit/s or 1000 Mbit/s	Full- or half-duplex

Panel

Figure 1 shows the panels of the UMPT boards.

Figure 1 UMPT panel

Function

The UMPT performs the following functions:

Performs configuration management, device management, performance monitoring, and signaling message processing.
Processes signaling and manages resources for other boards in the BBU.
Provides the USB port, transmission port, maintenance port to perform signal transmission and automatic software upgrade, and support BBU maintenance on the LMT or U2000.

Principle

The following figure shows the working principle of the UMPT.

Figure 2 Working principle of the UMPT

Port

The following table describes the ports on the panel of the UMPT.

**Table 2** Ports on the panel of the UMPT
Silkscreen	Connector	Description
E1/T1	DB26 female connector	E1/T1 signal transmission port
FE/GE0	RJ45 connector	FE electrical signal transmission port
FE/GE1	SFP female connector	FE optical signal transmission port
GPS	SMA connector	The GPS ports on the UMPTa2, and UMPTb1 are reserved. The GPS ports on the UMPTa6 and UMPTb2 are used for transmitting radio frequency (RF) signals received from the antenna to the satellite card.
USB⁽¹⁾	USB connector	A USB flash drive can be inserted into the port for software upgrade and base station commissioning⁽²⁾.
CLK	USB connector	Used for multiplexing the time of day (TOD) clock and test clock.
CI	SFP female connector	Used for BBU interconnection.
RST	-	Used for resetting the board.

NOTE:

(1) The security of the USB port is ensured by encryption, and the USB port can be shut down using commands.

(2) When the USB port functions as a commissioning Ethernet port, ensure that an OM port has been opened and the user has obtained required authorities for accessing the base station through the OM port before accessing the base station through the USB port.

Indicator

The following table describes the three status indicators on the UMPT panel.

**Table 3** Status indicators on the UMPT
Silkscreen	Color	States	Description
RUN	Green	Steady on	There is power supply, but the board is faulty.
		Steady off	There is no power supply, or the board is faulty.
		Blinking (on for 1s and off for 1s)	The board is running properly.
		Blinking (on for 0.125s and off for 0.125s)	The board is being loaded or configured. The board is not started.
ALM	Red	Steady on	An alarm is generated, and the board needs to be replaced.
		Steady off	The board is running properly.
		Blinking (on for 1s and off for 1s)	An alarm is generated, and you need to locate the fault before determining whether to replace the board.
ACT	Green	Steady on	The board serves as an active board.
		Steady off	The board does not serve as an active board. The board has not been activated. The board is not providing any services.
		Blinking (on for 0.125s and off for 0.125s)	The operation and maintenance link (OML) is disconnected.
		In every 4s, the indicator is on for 0.125s and off for 0.125s (eight times) in the first 2s and then off for 2s.	All cells configured in the subrack that houses this board are not activated. The S1 link is faulty. NOTE: Only the UMPTb1 working in LTE mode and the UMPTa2 and UMPTa6 have this indicator status.

Besides the preceding three indicators, some other indicators indicate the connection status of the FE/GE optical port, FE/GE electrical port, interconnection port, and E1/T1 port. The indicators that indicate the connection status of the FE/GE optical port and FE/GE electrical port are on both sides of the corresponding ports and have no silkscreen, as shown in the following figure.

Figure 3 Indicators for ports

The following table describes the indicators for ports.

**Table 4** Port status indicators
Corresponding Port/Silkscreen	Color	States	Description
FE/GE optical port	Green (LINK on the left)	Steady on	The connection is normal.
	Green (LINK on the left)	Steady off	The connection is abnormal.
	Orange (ACT on the right)	Blinking	Data is being transmitted.
	Orange (ACT on the right)	Steady off	No data is being transmitted.
FE/GE electrical port	Green (LINK on the left)	Steady on	The connection is normal.
	Green (LINK on the left)	Steady off	The connection is abnormal.
	Orange (ACT on the right)	Blinking	Data is being transmitted.
	Orange (ACT on the right)	Steady off	No data is being transmitted.
CI	Red or green	Steady green	The interconnection link is normal.
		Steady red	An optical module fails to transmit or receive signals due to one of the following reasons: The optical module is faulty. The fiber optic cable is broken.
		Blinking red (on for 0.125s and off for 0.125s)	Cables are connected in one of following incorrect manners: Indicators for all incorrectly connected ports are blinking in the UMPT+UMPT mode. The ports are connected in ring topology. Indicators for all incorrectly connected ports are blinking.
		Steady off	The optical module cannot be detected.
L01	Red or green	Steady off	E1/T1 links 0 and 1 are not set up, or a Loss Of Signal (LOS) alarm is generated.
		Steady green	E1/T1 links 0 and 1 are working properly.
		Blinking green (on for 1s and off for 1s)	E1/T1 link 0 is working properly, but E1/T1 link 1 is not set up or a LOS alarm is generated.
		Blinking green (on for 0.125s and off for 0.125s)	E1/T1 link 1 is working properly, but E1/T1 link 0 is not set up or an LOS alarm is generated.
		Steady red	Alarms are generated on both E1/T1 links 0 and 1.
		Blinking red (on for 1s and off for 1s)	An alarm is generated on E1/T1 link 0.
		Blinking red (on for 0.125s and off for 0.125s)	An alarm is generated on E1/T1 link 1.
L23	Red or green	Steady off	E1/T1 links 2 and 3 are not set up, or an LOS alarm is generated.
		Steady green	E1/T1 links 2 and 3 are working properly.
		Blinking green (on for 1s and off for 1s)	E1/T1 link 2 is working properly, but E1/T1 link 3 is not set up or a LOS alarm is generated.
		Blinking green (on for 0.125s and off for 0.125s)	E1/T1 link 3 is working properly, but E1/T1 link 2 is not set up or a LOS alarm is generated.
		Steady red	Alarms are generated on both E1/T1 links 2 and 3.
		Blinking red (on for 1s and off for 1s)	An alarm is generated on E1/T1 link 2.
		Blinking red (on for 0.125s and off for 0.125s)	An alarm is generated on E1/T1 link 3.

There are three indicators (R0, R1, and R2) that indicate in which mode the UMPT is working. The following table lists the meanings of the indicators.

**Table 5** Mode indicators on the UMPT
Silkscreen	Color	States	Description
R0	Red or green	Steady off	The board is not working in GSM mode.
		Steady green	The board is working in GSM mode.
		Steady red	Reserved
R1	Red or green	Steady off	The board is not working in UMTS mode.
		Steady green	The board is working in UMTS mode.
		Steady red	Reserved
R2	Red or green	Steady off	The board is not working in LTE mode.
		Steady green	The board is working in LTE mode.
		Steady red	Reserved

DIP Switch

There are two DIP switches on the UMPT, which are SW1 and SW2. The following figure shows the positions of the DIP switches.

Figure 4 Positions of DIP switches on the UMPT

The DIP switches perform the following functions:

SW1 is used to select the E1/T1 mode.
SW2 is used to select the grounding mode of E1/T1 transmission.

Each DIP switch has four bits. Table 6 and Table 7 describe the bit settings and meanings of the DIP switches.

**Table 6** DIP switch SW1
DIP Switch	Bit Setting				Description
DIP Switch	1	2	3	4	Description
SW1	ON	ON	Reserved	Reserved	The E1 resistance is set to 75 ohms.
	OFF	ON			The E1 resistance is set to 120 ohms.
	ON	OFF			The T1 resistance is set to 100 ohms.

**Table 7** DIP switch SW2
DIP Switch	Bit Setting				Description
DIP Switch	1	2	3	4	Description
SW2	OFF	OFF	OFF	OFF	Balanced
SW2	ON	ON	ON	ON	Unbalanced

egleesc · Created Jul 9, 2020 21:12:28

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Al_amery · Created Jul 11, 2020 06:58:35

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Al_amery · Created Nov 17, 2020 08:35:18

Ok Thanks

Mohamed_Ahmed · Created Jan 6, 2021 08:24:03

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