Dual PRI Installation
- NT5D97 - DDP2 PRI/DTI Card
- QPC775 - Clock Controller Card
- NT6D80 - MSDL card
Always use the ENB/DIS switch when inserting/removing cards.
- DDP2 to QPC775 uses NTC03 cables
- DDP2 (J6) DCHI uses the NTCK80 (AA=6 feet, AB=18 feet, AC=35 feet, and AD=50 feet)
- DDP2 (J5) TRK uses NTCK45 (120 ohm, 8feet) with two 9 pin male connections at the end.
|Unit 0 Clock 0||RJ11 Connector||Connects reference clock 0 to Clock Controller card 0|
|Unit 0 Clock 1||RJ11 Connector||Connects reference clock 0 to Clock Controller card 1|
|Unit 1 Clock 0||RJ11 Connector||Connects reference clock 1 to Clock Controller card 0|
|Unit 1 Clock 1||RJ11 Connector||Connects reference clock 1 to Clock Controller card 1|
|J5 TRK||9 Pin Female D||Two external E1's: Trunk 0 and Trunk 1|
|J6 DCH||26 Pin Female D||Connects to external DCH or MSDL|
|ENET||Red||ENET 0 or ENET 1 is disabled|
|DIS||Red||Trunk 0 or Trunk 1 is disabled|
|OOS||Yellow||Trunk is out of service|
|NEA||Yellow||Local (Near End) Alarm|
|FEA||Yellow||Far End Alarm|
|LBK||Yellow||Loop Back test being performed on Trunk 0 or Trunk 1|
|DDCH||Red/Grn||NTBK51 status: Red/Grn, ENB/DIS. Off: not fitted.|
Dip Switch Settings:
MSDL Settings: Choose a Port, all DCE to ON, all DTE to OFF (Use 422-A DCE)
DDP2 Settings: If using a Dual D-Channel daughter Board (NTBK51), you must set the MSDL device address.
S12_1- OFF-120 ohms (ON-75 ohms is used if using coax cable)|
S12_4- ON for PRI2/Off for DTI2
S7_1- OFF-120 ohms (ON-75 ohms is used if using coax cable)|
S7_4- ON for PRI2/Off for DTI2
Refer to the Circuit Card Reference NTP for full details.
|DB-9 (E1) (NT8D7217E6)||DB-15 (T1)||CSU/DSU * (RJ48/RJ45)||(T-568B)|
|2 - Black/Transmit||1 - White/Transmit||1 - Transmit (R1)|
|3 - Red/Transmit||9 - Black/Transmit (could be 8)||2 - Transmit (T1)|
|6 - Black/Receive||3 - Red/Receive||4 - Receive (R)|
|7 - White/Receive||11 - Black/Receive (could be Yellow)||5 - Receive (T)|
* DSU/CSU = Data Service Unit/Channel Service Unit, eg, the PTT modem.
Pinning a RJ45 to DB-9F Adapter:
Use the following adapter configuration with an E1, DB-9 end on the PBX (to NTCK45AA on J5).
You may need to reverse the TX / RX pairs - or swap orange & blue with T-568B (568A or 568B).
Note: Most RJ45 to DB-9F Adapters use this colour
- DB-9 (E1) - Loop pin 2 to pin 6, and pin 3 to pin 7
- DB-15 (T1) - Loop pin 1 to pin 3, and pin 9 to pin 11
- RJ45 (DSU) - Loop pin 1 to pin 4, and pin 2 to pin 5
Note: An RJ45 connector will fit an RJ48 jack, but the key on an
RJ48 connector will prevent it from plugging into an RJ45 jack.
Remember, the D channel will not establish on a loop test.
Step 1. CEQU
TYPE CEQU PRI2 (New PRI Loop number)
Step 2. Build D- Channel
ADAN: NEW DCH X
DNUM: X (0-15) (DNUM is the physical MSDL card address)
PORT: X (0-3) (physical PORT on MSDL card)
IFC: EURO (try EURO first- APAC may work in Asia)
DCHL: X (PRI Loop Number)
SIDE: USR (If setting up TIE, one side is USR the other is NET)
RLS: 25 (If not connecting to a Nortel CO switch-enter through)
Step 3. Build Route
IFC: EURO (Must match D-channel)
PNI 1 (1 if connecting to another PBX/0 if connecting to PTT)
DSEL VOD (May also try VCE)
TARG 01 02 03 04 05 06 07 08 09 (these station TGAR's cannot access the ACOD)
IDC (YES - only if using Incoming Digit Conversion)
Step 4. Build Trunks
REQ: NEW 30 (build all 30 channels at once)
TN X 1 (LOOP AND CHANNEL)
DES (eg: PRI1)
PCML A (Note: A = overseas / MU = the US)
RTMB X 1 (Route number and first member)
Step 5. LPTI (Loop Timers)
Set CRC on/off. If you get Frame-slip errors, try changing this.
LOOP L (Loop)
MFF CRC (CRC or sometimes AFF)
Step 6. SYTI (Clocking)
PREF L (Loop for CC0 primary clock reference)
SREF L (Loop for CC0 secondary clock reference)
PREF L (Loop for CC1 primary clock reference)
SREF L (Loop for CC1 secondary clock reference)
Step 7. CLID
TYPE NET (NET_DATA)
HLCL (Digits to be inserted before DN on CLID)
DIDN (Set to No so DN is not sent out/ Set to Yes so DN is sent out)
Note: LDN0 must be defined (LD 15) for ISDN PRI DID service. The length of LDN0 determines the number of trailing digits translated as the dialed DN on PRI DID routes.
Step 8. Clock Tracking
.TRCK (PCK = Primary clock / SCLK = Secondary clock / FRUN = Freerun)
Step 9. PRI Startup
The MSDL / DCH will need a forced download (FDL) the first time its brought into service.
# = Loop Shelf Card on MGC systems.
STAT MSDL #
ENL MSDL # FDL
STAT MSDL #
ENL DCH X
ENLL X (Loop)
SSCK X (0 or 1 on a large system)