Vodavi XTS-IP Installation Manual page 86

3-46
Chapter 3 - System Installation
(3) PRIBs and (2) BRIBs
The clock cable should be connected from the OUT position of the PRIB1 to the IN connectors
of all the cards and all clock switches should be in the ON position.
(3) T1IBs and (2) BRIBs
The clock OUT cable from T1IB1 should be connected to the clock IN cable of the T1IB2 and
the clock OUT cable from T1IB2 should be connected to the clock IN cable of T1IB3. SW3 of
T1IB1 should be in the ON position, and SW3 of T1IB2 and T1IB3 should be in the OFF
position. The two BRIBs are not connected with clock control cables and the clock switch of
the BRIB cards are placed in the OFF position.
Clock Chain Using T1 / PRIB / BRIB
The following four illustrations are clock chain examples that apply to PRIB or T1 use. Arrows
on the illustrations represent data flow. The BRIB clock chain is similar, in that you always
connect:
IN of LMU1 to OUT of the BRIB closest to the LMU1
OUT of a BRIB in Cabinet 1 to the IN of next closest BRIB
IN of LMU2 to OUT of the BRIB closest to the LMU2
IN from a BRIB in Cabinets 1 or 2 to the next closest BRIB
IN from the last BRIB to OUT of LMU2.
XTS-IP - Installation Manual
CO/PBX Connections
December 2005