Aria-130 Digital Key Telephone System
Issue: 1.2
Installation Manual
121
Clock Control Cable
MPB
PRIB
(TE mode)
BRIB
STIB
(T interface(s))
PLLU
Back Plane (Basic Mother Board)
OUT
IN
Priority
of Boards
<
<
OUT
IN
OUT
IN
BRI Line
TE
S
T
PRI Line
Figure 3.5.18.a Example of multi-ISDN boards installation when PRIB has the highest priority
Note:
1. Clock control cables supplied by LGE should be connected between ISDN boards according to
the priority of them when multi-ISDN boards installation.
2. When PRIB is set to master (NT) mode, the clock cable connected with PRIB is not required.
Clock Control Cable
MPB
BRIB
(the highest
priority)
BRIB
STIB
(T interface(s))
PLLU
Back Plane (Basic Mother Board)
OUT
IN
Priority
of Boards
<
<
OUT
IN
OUT
IN
BRI Line
TE
S
T
Figure 3.5.18.b Example of multi-ISDN boards installation when BRIB has the highest priority
Note:
1. Clock control cables supplied by LGE should be connected between ISDN boards according to
the priority of them when multi-ISDN boards installation
