Vodavi Starplus Triad 1/2/3 Installation Manual page 74

CO/PBX Connections 2-53
(1) T1IB and (1)PRIB
T1IB PRIB
SW3 On SW2 Off
If both cards in a phone switch are connected to a telephone company
clock (not point-to-point T1), put the T1 clock switch in the enable
position (UP) to allow it to receive clocking from the telephone company
directly, and do not install the clock cable. Set the PRIB clock switch in the
disable position (OFF), which allows the PRIB to synchronize its timing off
of the backplane (from the T1 clocking). If the T1 is a point-to-point T1,
set the PRIB in the enable position (ON), the T1 in the disable position
(OFF), and do not install the clock cable.
(1) PRIB and (1) BRIB
PRIB BRIB
Sw2 On Switch 4, SW2 On
Install with the cable and set both PRIB and BRIB switches to the enable
position (ON).