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 
						

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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 T1 clock source chain and to the
down position for PRI/BRI clock source chain.
Examples - Settings and Cabling
The following examples clarify the clocking and cabling for these cards:
(1) T1IB and (1)PRIB
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.
If using a point-to-point connection (e.g., networking), do not connect clock cable to
a point-to-point circuit.
Whentheswitchisinthe“up”position, it should be considered“ON”.Whentheswitch
is in the“down”position, it should be considered“OFF”.
The cable connection follows the same logic -“up”is clock outside (ON) and“down”
is clock inside (OFF). ON means that clocking is coming from outside the KSU and OFF
means that clocking is coming from inside the KSU.
T1IB PRIB
SW3 On SW2 Off 
						

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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 the BRIB to synchronize
its timing off of the backplane (from the T1 clocking). If the T1 is a point-to-point T1, set the
BRIB to the enable position (ON), the T1 in the disable position (OFF), and do not install the
clock table.
(2) PRIBs and (3) T1IBs
                  PRIB BRIB
Sw2 On Switch 4, SW2 On
          T1IB BRIB
SW3 On Switch 4, SW2 Off
PRIB1 PRIB2 T1IB1 T1IB2 T1IB3
SW2 On SW2 On SW3 Off SW3 Off SW3 Off 
						

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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 connected to the IN position on the connector on the T1IB2.
The clock cable should be connected to the OUT position on T1IB2 and connected to the IN
position on the T1IB3. SW3 of T1IB1 should be placed in the ON position, with SW3 on T1IB2
and T1IB3 being OFF. The two PRIBs are not connected with clock control cables, and SW2 on
the PRIBs should be in the OFF position.
(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.
T1IB1 T1IB2 T1IB3 PRIB1 PRIB2
SW3 On SW3 Off SW3 Off SW2 Off SW2 Off
PRIB1 PRIB2 PRIB3 BRIB1 BRIB2
SW2 On SW2 On SW2 On Switch 4, SW2 On Switch 4, SW2 On 
						

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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 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.
The callout ofFigure 3-24: Case 1 of Clock Chain, that pertains to setting the Clock Source
Switch to either PRI/BRI or T1, is applicable to all examples.
TheexpandedviewcalloutatthetoprightofFigure 3-26: Case 3 of Clock Chainshows the
connectors on LMU2 when there is a T1 or ISDN card in the associated Cabinet. The expanded
view callout at the middle right of the same illustration shows the connection required for
Cabinets 1 or 2 when the Cabinet(s) do not have T1 or ISDN cards in use.
      T1IB1 T1IB2 T1IB3 BRIB1 BRIB2
SW3 On SW3 Off SW3 Off Switch 4, SW2 Off Switch 4, SW2 Off 
						

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Figure 3-24: Case 1 of Clock Chain
Set Clock
Source
Switch to
PRI/BRI
or to T1 
						

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Chapter 3 - System Installation
Figure 3-25: Case 2 of Clock Chain 
						

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Figure 3-26: Case 3 of Clock Chain
IN OUT
IN OUT
OUT INOUT IN 
						

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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 strongly recommended that a
DTIB12 or DTIB24 be installed in slot 0 and a Digital Keyset w/LCD be connected to the first
port.
Electronic Telephone Interface Board
The Electronic Telephone Interface Board (ETIB) board provides the interface to twelve
electronic telephones or DSS/BLF terminals. The card has one LED indicator for off-hook/in
usestatus.TheETIBcardextractorsarecolorcodedgreen.
There is one 50-pin female amphenol connectors labeled Conn2 located on the front of the
card. This allows the system to be cabled to the main distribution frame (MDF). 25-pair
telephone cabling must be prepared with mating connectors to extend the interface circuits
to the MDF. The cables should be routed through the cable clamps at the bottom of the KSU
to the MDF. These cables are then terminated on industry standard 66M1-50 type
punchdown connector blocks. It is recommended that 66M1-50 split blocks with bridging
clips be used to simplify troubleshooting and to quickly isolate faults.
The only telephone that can be used for database programming is the digital
Executive display telephone.