iPECS eMG800
Hardware Description and Installation Manual
Issue 1.8
36
4.3.2
BRIB (Basic Rate Interface Board) w/Selectable S/T Interface
There are two kinds of BRIB2/BRIB4 according to CPU, but they have the same functions.
The BRIB is available in two models, the BRIB2 with two (2) BRI lines (4 channels) and the BRIB4 with four (4)
BRI lines (8 channels). The BRIB is compatible with ETSI 300.012 and ITU-T recommendations I.430
supporting S (Subscriber) or T (Trunk) interfaces. As shown in Figure 4.3.2-1, the S interface of the BRIB acts
as the NT (Network Termination) connecting to TEs (Terminal Equipments) and can provide power feed (-
40VDC) to the attached TEs (maximum eight TEs). A 100-ohm Terminating Resistor can be inserted across
the TX and/or RX pair. When used, a 100-Ohm terminating resistor should be connected across the TX and
RX pair at one of the TEs.
Figure 4.3.2-1 BRIB2 and BRIB4
