The GEIUB is the GSM E1/T1 Interface Unit for the Abis interface. It can be installed in slots 18-27 in the GMPS/GEPS. The GEIUB can be configured in pairs and work in active/standby mode.
GEIUA/GEIUB/GEIUP/GEIUT(EIUa) Panel
The physical boards of the GEIUA, GEIUB, GEIUP, and GEIUT are the same. After being loaded with different software, the physical boards perform different functions. These boards have the same appearance and the same LEDs and ports.
LEDs on the GEIUA/GEIUB/GEIUP/GEIUT(EIUa)Panel
The physical boards of the GEIUA, GEIUB, GEIUP, and GEIUT are the same. After being loaded with different software, the physical boards perform different functions. These boards have the same types of LEDs on the panels: RUN, ALM, and ACT.
Ports on the GEIUA/GEIUB/GEIUP/GEIUT(EIUa) Panel
The physical boards of the GEIUA, GEIUB, GEIUP, and GEIUT are the same. After being loaded with different software, the physical boards perform different functions. These boards have the same ports. Of the seven ports, four ports are labeled E1/T1, one 2MO, one 2M1, and one TESTOUT.
DIP Switches on the GEIUA/GEIUB/GEIUP/GEIUT(EIUa)
The physical boards of the GEIUA, GEIUB, GEIUP, and GEIUT are the same. After being loaded with different software, the physical boards perform different functions. They have the same types of DIP switches: S1, S3, S4, S5, and S6.