Dual PRI Installation
(Large/CS1000M)

Hardware:

The following resides in the Core/Network module:

• NT5D97 - DDP2 PRI/DTI Card
• QPC775 - Clock Controller Card
• NT6D80 - MSDL card

Always use the ENB/DIS switch when inserting/removing cards.

Cables:

• DDP2 to QPC775 (clock) uses NTCG03 cables (shown right)
• 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, 8-feet) with two 9 pin male connections at the end

Note, the NTCG03 comprises a 9-pin adapter, with a 2-pair RJ11 line cord (rollover):

• 1 → 4
• 2 → 3
• 3 → 2
• 4 → 1

External connectors:

Faceplate LED's:

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.

Refer to the Circuit Card Reference NTP for full details.

NTCK45:

The NTCK45AA a cable is for systems equipped with an I/O filter panel, it connects the DDP2 faceplate J5 TRK port (P1, D-type 9 pin male) to the I/O filter (P2, P3 D-type 9 pin males), breaking out the two DDP2 trunks into two 9 pin D connectors.

DDP2 (J5)	I/O Panel	Color	Description
P1-1	P2-6	Black	Trunk 0 TX Tip
P1-2	P2-7	Red	Trunk 0 TX Ring
P1-3	P2-2	Black	Trunk 0 RX Tip
P1-4	P2-3	White	Trunk 0 RX Ring
P1-5	P3-6	Black	Trunk 1 TX Tip
P1-6	P3-7	Red	Trunk 1 TX Ring
P1-7	P3-2	Black	Trunk 1 RX Tip
P1-8	P2-3	White	Trunk 1 RX Ring

NTCK45

Trunk Pinouts:

Use the following table when hooking up, be prepared to swap RX and TX pairs!

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
scheme, but yours may not! Always check it first!

RJ-45	Colour	DB-9F
1	Blue	2
2	Orange	3
3	Black
4	Red	6
5	Green	7
6	Yellow
7	Brown
8	White

Loopback Adaptors:

• 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.

PBX Programming:

Step 1. CEQU

LD 17

Step 2. Build D- Channel

LD 17

Step 3. Build Route

LD 16

Step 4. Build Trunks

LD 14

Step 5. LPTI (Loop Timers)

Set CRC on/off. If you get Frame-slip errors, try changing this.

LD 73

Step 6. SYTI (Clocking)

LD 73

Step 7. CLID

(NET_DATA)

LD 15

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

LD 60

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.

LD 96

LD 60