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 Loop/Ground start signaling. If Loop or Ground Start signaling protocols are ordered,
Loop 
Supervison is not provided. However if E&M signaling protocol is ordered, disconnect supervision is provided.
The switching equipment processes 
DNIS numbers received from the Tl circuit depending o’n the trunk sit’WhtiOn.
The following table provides the operation for DNIS numbers:
SignalbIg Protocol &System 
DeWion
Loop Start
Loop Start with 
DISA
Processing without DNISProcessirg with DNIS
Normal ring tableDNIS digits discarded.
processing
Return dial tone and waitProcess 
DNIS digits as though they
for digits.
had been entered after dial tone had
been returned
Ground Start
Ground Start with 
DISANormal ring table
processing
Return dial tone and wait
for digits.
DNIS digits discarded.
Process 
DNIS digits as though they
had been entered after dial tone had
been returned.
E&M
Return dial tone and wait
for digits.Process 
DNIS digits as though they
had been entered on an E&M line
after dial tone had been returned.
DID (E&M)Not applicableProcess 
DNIS digits as though they
had been entered on a DID line from
the CO.Page 3 of 46TF NO. 58
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							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 Control Board
(VCB). The VCB contains circuitry which, when connected to the Tl trunk card, synchronizes the Pulse Code
Modulation (PCM) timing of the system with that of the central office. At least one Dual-Tone Multi-Frequency
(DTMF) receiver is needed if the system is to receive incoming DTMF signals on any of the channels.
A 
Tl trunk card can be installed in any peripheral card slot l-1 8. Since the Tl trunk card uses 24 time slots, the
trunk card uses two card slots in the system. After 
a,Tl trunk card is installed, the card slot immediately to the leftof the 
Tl trunk card cannot be used. Four (4) Tl trunk cards may be plugged into the system providing the
maximum capacity of 96 trunks.
Tl spans can be used to connect two DVX illsystems together to provide a private netwdrk. In this configuration
the CSU is not used between the two systems.
.Page 4 of 46TF NO. 58
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							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 Lit
Lit Solid indicates
OOFReceive Out of FrameCaused by a prolonged (2.5) secondSync 
(COF)RCL. Declared when 2 out of 4 framing
bits are received in error
DS4Yellow
Normal=not Lit
Lit Solid indicates
CFAReceive YELLOW
Carrier Failure Alarm(CW
Carrier failure fron? a remote system for
335ms. System performs trunk
processing:
At end of CFA 
Tl recenters receive
buffer, ends trunk processing 
&
resumes normal operation
DS5Red
Normal=not Lit
Lit Solid indicates
CFAReceive AIS or Blue
CFA
Known as Keep Alive
SignalUnframed all 1s signal. Indicates
transmission failure upstream toward
local end.
Causes RED alarm and OOF.
DS6Green
Normal=not Lit
Lit Solid indicates
CFACard in any Line LoopNormal operation
Back mode
DS7
DS7
DS7Red
Red
RedLit, solid
Flash 1 
setFlash 
l/10 set
Test mode
Normal
:
Trunk Processing State1. Disable frame sync to VCB
2. Transmit Yellow CFA
3. Transmit idle code to all channels
4. Ignore receive signaling bits and set
all transmit signal bits to zero (on-hook)
5. Inform system CPU
6. Make trunks appear idle inboundPage 6 of 46TF NO. 58
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							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 programmed.
3.Tl lines can be accessed using direct trunk appearances, pool keys, or by dialing a group access code.
4.Tl lines can appear on direct trunk buttons, loop keys, or pool keys. The CO rules on ringing,
transferring, and accessing the 
Tl lines are the same as current CO rules.
5.Each Tl line can be programmed to provide dial tone and ringback to the statio; user. This is for CaSeS
where the carrier requires the system to generate ringback or dial tone for the users.
External Equ#ment Required:
1.The Tl Kit: includes: the Tl trunk card, a Channel Service Unit (CSU), three specialized connector
cables (a SMB Coax, a 
Tl trunk card cable, a RJ-48X to CSU cable) and a power supply transformer.
2.Any infinite software package.
3.In order to install a T! trunk card, the Central Processing Unit (CPU) requires a System Memory
Expansion Kit, (Part Number 
lN4830-20) to upgrade from 2-lmegabit SRAM modules to 2-megabit
SRAM modules.
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							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 starting this procedure, you must have an Integrated Circuit (IC) Extractor tool to rpmove the current
SHAMS from the Printed Circuit Board.
1.Locate and remove SHAMS U46, and U47 on the CPU board. These SHAMS must be removed and
replaced with the new 
SHAMS in the Memory Expansion kit. Using the IC tool, gently pull upwards until
the 
SBAM lifts free of the socket. Be careful not to bend or break the pins of the SPAMs.
2.Place the SPAMs on a non-static, non-conductive surface until the new software is installed. Then place
the 
SHAMS in the packaging tube and put the tube into the packing box.
’ .
TO INSTAI I NFW SHAM CHIPS,
1.Locate the SHAM Chip Selector jumper J4 on the Central Processor Unit which is located toward the
top of the PCB. By default, this jumper (J4) is 
jumpered between pins 2 & 3 for l-Megabyte chips.
Change the jumper (J4) from pins 2 
& 3 to pins 1 & 2 for the two 4-Megabyte SBAM chips.
2.Remove the SHAMS from the packing tube.
3.Install SHAMS U46, and U47 on the Central Processor Unit as shown in Figure 2. The new SHAM
modules have a silver dot in the top left corner, directly above the pin.Use this dot to align the pins
above the socket holes. When the pins are properly aligned, push gently to insert the 
SRAM module
into the CPU board.
4.-When the SHAM modules are installed, check for bent pins on the SHAMS and correct them.
Page 8 of 46TF NO. 58
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							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 been upgraded to increase
the memory.\
lOnly Qained Installers who are thoroughly familiar with the basic components of the infinite
DVXDigital System should undertake this installation.
a
0Read through the entire installation procedure before beginning the installation.
lCheck the following items:
qThe infinite DVX illDigital System CPU contains software version l.OE (Master) and
l.lA (Slave), or higher.
nCheck the Tl kit to insure all the parts listed under hardware requirements are included.
nCheck:
The 
Tl circuit to verify that it is installed and tested by the local exchange carrier.
The connecting jack is in the desired location
The required line build-out (or distance to the last repeater).
nKnow the Tl Type (signaling type) for each channel..
nIf the installation is to an existing system, make certain there are two adjacent card
slots available for each 
Tl trunk card to be installed.
N0
cT
E
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							M&e TM Digital SystemsTF NO: 58
Tl Truk Card (Cont’d)
Figure 3 Tl Trunk Card
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							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
tnmedmte lefl of the Tl tnH card. See the illustration provided for the Tl setup. If a trunk card iS
already installed to the left of the intended slot for the Tl trunk card, move trunk card to an available
slot.
The 
Tl trunk card may be inserted into the cabinet with the power on.
3.Receive clock recovery cable Installation. Read all of this step before determining whether or not to
connect the receive clock recovery cable. Refer to the following illustration.8Q
co
Connect receive clock
recovery cable to VCB
Tl Spans
Tl receives clock from carrier
~TIE Lines to Connect S y str
T
1I I
Do Not Connect receive clock
recovery cable to VCBNO CSU RequiredCarrier or
other dock
source
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