Diameter of the local maintenance serial cable on the MA5616

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Diameter (AWG) of the local maintenance serial cable on the MA5616:
0.38 mm (28 AWG)

Other related questions:
Which serial number is needed to renew the maintenance service of S series switches
Serial numbers of S series switches fall into two categories: - Equipment serial number (ESN): indicates the serial number of a switch. The ESN of a modular switch is also called the chassis serial number. - Serial number (SN) of each component: indicates the serial number of a card, subcard, optical module, power supply, or fan module. An SN is required to renew the maintenance service for a switch. For all the components on the switch, provide the ESN of the switch. For one component, provide the SN of this component.

Cables of the Console Interface on an AR
The console cable is used to connect the RJ45 connector of the console interface and DB9 connector of the serial interface of the PC.

How to connect the U1980 to a PC using a serial cable
A serial cable with the RJ-48 connector at one end and DB9 at the other end is delivered with the device. Connect the DB9 connector to the serial port of the PC and the RJ-48 connector to the Console port of the U1900.

Other methods of logging in to the USG except for through the serial cable
You can log in to the USG in one of the following ways: 1. Through the console port. You can connect a PC to the console port of the device to configure and manage the device. 2. Through Telnet. You can configure the PC to access the device through Telnet to configure and manage the device. 3. Through SSH. You can configure the PC to access the device through SSH to configure and manage the device. 4. Through the web UI. You can log in to the device through the web UI to configure and manage the device in a visualized manner. 5. Through the service interface in Layer 2 transparent access mode. When the device is in transparent access mode, you cannot set the IP address of the service interface. In this case, you need to log in to the device through the VLANIF interface.

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