All FE ports, E1/T1 ports, and clock ports supported by the SG7000 comply with the related international specifications.

Table 1 lists the specifications of the FE electrical interface.

Table 1 Specifications of FE interface

Item	Specification
Compliant standard	IEEE 802.3u
Transmission speed	10/100 Mbit/s auto-sensing
Transmission distance	100 m
Frame format	10BASE-T / 100BASE-TX
Interface type	RJ-45
Nominal impedance	100 ohm

Table 2 lists the specifications of the E1/T1 interface.

Table 2 Specifications of E1/T1 interface

Item	Specification
Compliant standard	G.702, G.703
Transmission speed	E1: 2.048 Mbit/s (64 kbit/s x 32)T1: 1.544 Mbit/s (64 kbit/s x 24)

Table 3 lists the specifications of the clock interface.

Table 3 Specifications of clock interface

Item	Specification
Compliant standard	G.702, G.703
Transmission speed	2.048 Mbit/s or 2.048 MHz

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