The GEPUG enables the E1/T1 transmission on the Gb interface.
The GEPUG performs the following functions:
Provides four E1/T1 electrical ports, which are used for FR transmission
Provides Tributary Protect Switch (TPS) function to enable switchover between the physical links of the active and standby boards.
Transmits and receives 32 E1/T1 signals, and encodes and decodes the E1/T1 signals (The E1 transmission rate is 2.048 Mbit/s and the T1 transmission rate is 1.544 Mbit/s.)