Starplus Triad Xts Installation Manual

CO/PBX Connections3-37
Chapter 3 - System Installation
Figure 3-22: VoIP Card - No VoIP Modules Installed
Figure 3-23: Connection Side of VoIP Module (Closeup)
VoIP Firmware 

3-38CO/PBX Connections
Chapter 3 - System Installation
ISDN and T1 Clocking
When combining BRIB, PRIB, and T1 cards in one KSU, specific settings and cabling are
important for proper clocking. The Phase Lock Loop circuitry within the MPB synchronizes
the clocking from the Central Office to the clocking of the KSU. Popping, crackling, dropped
calls, and one-way transmission are usually attributed to the clocking not being synchronized
correctly.
Set the clock source switch of LMU1 to the up position for...

CO/PBX Connections3-39
Chapter 3 - System Installation
(1) PRIB and (1) BRIB
Install with the cable and set both PRIB and BRIB switches to the enable position (ON).
(1)T1IBand(1)BRIB
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 (ON) to allow it to receive clocking
from the telephone company directly. Do not install the clock cable.
Set the BRIB clock switch in the disable position (OFF), which allows...

3-40CO/PBX Connections
Chapter 3 - System Installation
The clock cable should be connected to the OUT position on the connector on the PRIB1. The
clock cable should be connected to the IN position on PRIB2. SW2 of the PRIB1 and PRIB2
should be placed in the ON position. The three T1IBs are not connected with the clock control
cable and SW3 on these boards should be in the OFF position.
(3) T1IBs and (2) PRIBs
The clock cable should be connected to the OUT position on the cable connector on the T1IB
and...

CO/PBX Connections3-41
Chapter 3 - System Installation
(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 SW2 of the BRIB
cards are placed in the OFF position.
Clock Chain Using T1 / PRIB / BRIB
The...

3-42CO/PBX Connections
Chapter 3 - System Installation
Figure 3-24: Case 1 of Clock Chain
Set Clock
Source
Switch to
PRI/BRI
or to T1 

CO/PBX Connections3-43
Chapter 3 - System Installation
Figure 3-25: Case 2 of Clock Chain 

3-44CO/PBX Connections
Chapter 3 - System Installation
Figure 3-26: Case 3 of Clock Chain
IN OUT
IN OUT
OUT INOUT IN 

CO/PBX Connections3-45
Chapter 3 - System Installation
Figure 3-27: Case 4 of Clock Chain 

3-46Station Connections
Chapter 3 - System Installation
Station Connections
The system can be equipped with any combination of the six station boards; DTIB12, DTIB24,
ETIB, SLIB, SLIBE, and SLIBC. The station interface boards can be installed in any universal card
slot in the Cabinets. It is recommended that slots beginning from slot 0 be used for station
interface boards. Also, since the first port of the DTIB is the database access port (the only
port which enables admin programming by default), it is...