Vodavi Infinite Dvx Iii Hybrid Key Telephone System Installation Manual

infinite m Digital SystemsTF NO: 58
Tl Trunk Card (Cmt’d)
Tl Orderirg information: When ordering a Tl circuit from a carrier, request D4 framing and Alternate Mark Inversion
(AMI) Line coding using the superframe (SF). The following are additional ordering information specif@ations:If 
orderirg:ANIIDNIS/DID/E&MLoop’Ground Start Signalihg *
Circuit Information2 wire2 wire
Supervisory SignalingE&MLoop or Ground
Address SignalingDTMFDTMF
Start Dial IndicatorWinkstartDial Tone
l ANVDNIS not available on...

infinite TM Digiil SystemsTF NO: 58
Tl Trunk Card (Cont’d)
operatim
The input and output of the Tl trunk card is designed to connect to an external Channel Service Unit (CSU).
The
Tl kit consists of a Tl trunk card, a stand-alone CSU, power supply for the CSU, and the three cables needed for
installation. One CSU and one 
Tl trunk card are required for each Tl circuit (24channels) from the central Office.
The 
Tl trunk card provides a receive clock recovery output which is connected to the system Voice...

Tl Spans
NO CSU Required
DVX”‘SYSTEMT1-
Icsu
I 
’Fractional Tl Span
Figure 1 Tl Trunk Card Configurations
infinite m Digital SystemsTF NO: 58
Tl Trunk Card (Cont’d)Page 5 of 46TF NO. 58
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idnite n~ Digiil SystemsTF NO: 58
Tl Trwrk Card (Cont’d)
Tl LED lnfonnation The Tl trunk card has six (6) LED’s mounted on the edge of the card for troubleshooting
purposes. These LED’s either light or flash to indicate a variety of conditions on the Tl circuit.
LEDCOLORSTATE
FUNCTIONCONDITION
DSlGreenLIT+5 Volt dc indicationNormal operation mode
DS2RedNormal 
=not LitReceive Carrier LossNo bits have been received by Tl for
Fw156ms. Outgoing calls cannot be made.
Solid indicates RCL
DS3Red
Normal=not...

iniinife TM Digital SystemsTF NO: 58
Tl Trurh Card (Cont’d)
1.Four (4) Tl trunk cards may be installed in the system to provide the maximum 96 trunk capability.
2.The installer must program the Tl trunk card type in system programming (Flash 24). The Tl trunk
card does not function by simply plugging it into a system card slot. Once programmed, the slot
immediately to the left is automatically marked as deleted (vacant). If a card exists in that slot, it 
Ceases
to function after the 
Tl trunk card is...

Mnite TM Diiital SystemsTF NO: 58
Tl Tnrnk Card (Cti’d)
InstaIWan of SRAM (Static RAM) Ch@s on hia!& DVX “’ Digiil System:
The Central Processor Unit (CPU) of the infinite DVX 
“1Digitj\,System has two l-Megabyte SHAM chips On it
which determine the amount of RAM used by the infinite DVXDigital Key Telephone System. To upgrade the
SRAM chips, the SRAMs must be removed and the new SHAMS installed in their place. Refer to Figure 2 for
switch and chip locations.TO RFMOVF 
FXISTING SEAM CHIPS;
Before...

infinite rm Digital SystemsTF NO: 58
Tl Tnrnk Card (Cortt’d)
Figure 2 
Central Processing Unit (CPU)Page 9 of 46TF NO. 58
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hifnife m Diiltal SystemsTF NO: 58
Tl Trud Card (Coded)
Installation of Tl trunk and Chsmel Service Unit
The installation of a Tl circuit can be broken down into the following main phases:
1.Install the Tl trunk card in the system.
2.Program the Tl circuit channels (lines) using System Programming.
3.Mount the Channel Service Unit (CSU) and connect it to the trunk card,
4.Connecting the Tl circuit to the CSU.
Pre-Installation Requirements:
0Be sure that the SBAM on the Central Processing Unit (CPU) has...

M&e TM Digital SystemsTF NO: 58
Tl Truk Card (Cont’d)
Figure 3 Tl Trunk Card
Pagellof 46TF NO. 58 

White TM Digital SystemsTF NO: 58
Tl TN& Card (Coded)
1.
1.
hstall the Tl trur& csrd h the system.
Set all switches on the edge of the Tl trunk card to OFF. This selects D4 or Super-frame framing and
Alternate Mark Inversion (AM) line coding. These switches are intended for future use to select the
desired framing and format type and must be set to the OFF position.See the 
Tl trunk card
illustration.
2.Install the Tl trunk card in one of the trunk card slots.Do not hstall a twk cstd in the slot to the...