Mike's PBX Cookbook

Dual PRI Installation
(Large System)

NT5D97 - Dual PRI Card

The following applies to EUROPEAN EURO-ISDN PRI's.
For Small Systems (option 11), see PRI programming.
Universal Digital Trunk (UDT) card, see UDT E1 PRI Example.

Hardware:

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

Cables:

External connectors:

DesignatorTypeDescription
Unit 0 Clock 0RJ11 ConnectorConnects reference clock 0 to Clock Controller card 0
Unit 0 Clock 1RJ11 ConnectorConnects reference clock 0 to Clock Controller card 1
Unit 1 Clock 0RJ11 ConnectorConnects reference clock 1 to Clock Controller card 0
Unit 1 Clock 1RJ11 ConnectorConnects reference clock 1 to Clock Controller card 1
J5 TRK9 Pin Female DTwo external E1's: Trunk 0 and Trunk 1
J6 DCH26 Pin Female DConnects to external DCH or MSDL

Faceplate LED's:

DesignatorColourDescription
ENETRedENET 0 or ENET 1 is disabled
DISRedTrunk 0 or Trunk 1 is disabled
OOSYellowTrunk is out of service
NEAYellowLocal (Near End) Alarm
FEAYellowFar End Alarm
LBKYellowLoop Back test being performed on Trunk 0 or Trunk 1
DDCHRed/GrnNTBK51 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.

Trunk 0: S12_1- OFF-120 ohms (ON-75 ohms is used if using coax cable)
S12_2- Spare
S12_3- Spare
S12_4- ON for PRI2/Off for DTI2
 
Trunk 1: S7_1- OFF-120 ohms (ON-75 ohms is used if using coax cable)
S7_2- Spare
S7_3- Spare
S7_4- ON for PRI2/Off for DTI2

Refer to the Circuit Card Reference NTP for full details.

Trunk Pinouts:

DB-9 (E1) (NT8D7217E6)DB-15 (T1)CSU/DSU * (RJ48/RJ45) (T-568B)
2 - Black/Transmit1 - White/Transmit1 - Transmit (R1)
3 - Red/Transmit9 - Black/Transmit (could be 8)2 - Transmit (T1)
6 - Black/Receive3 - Red/Receive4 - Receive (R)
7 - White/Receive11 - 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-45ColourDB-9
1Blue2
2Orange3
3Black
4Red6
5Green7
6Yellow
7Brown
8White

Loopback Adaptors:

RJ-48 Loopback

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.

Software:

Step 1. CEQU

LD 17

REQ  CHG
TYPE CEQU
PRI2 (New PRI Loop number)

Step 2. Build D- Channel

LD 17

REG CHG
TYPE ADAN
ADAN NEW DCH # Available D Channel Number
CTYP MSDL
DNUM: X (0-15) DNUM is the physical MSDL card address the PRI Card
PORT: X (0-3) Physical PORT on MSDL card
DES:
USR: PRI
IFC: EURO Try EURO first- APAC may work in Asia
DCHL: X PRI Loop Number
DRAT:
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
RCAP: MSL ?

Step 3. Build Route

LD 16

REQ NEW
TYPE RDB
CUST 0
ROUT X New Route Number
DES: PRI1 Designation
TKTP: DID
RCLS EXT
VTRK NO
DTRK YES
DGTP PRI2
ISDN YES
MODE PRA ISDN Trunk Route (ISDN=yes)
IFC EURO Must match D-channel
CNTY ETSI Depends on the protocol of the CO
PNI 1 1 if connecting to another PBX/0 if connecting to PTT
NCNA YES
NCRD YES
DSEL VOD May also try VCE
ICOG IAO  In And Out call processing
SRCH RRB Round Robin or random selection of trunks
TRMB YES Trunk tromboning allowed
ACOD 5601 Access Code for the Route Dial Tone
TARG 1 2 3 These station TGAR's cannot access the ACOD
INC (NO)/YES YES only if using Incoming Digit Conversion
CDR YES Yes for CDR records on this route
INC YES
LAST YES
OAL YES
AIA YES
MUS YES Yes if Music Route is available
MRT 21 Music Route Number

Step 4. Build Trunks

LD 14

REQ NEW 30 Build all 30 channels at once
TYPE DID
TN X 1 Loop and Channel
DES aaa..a Designator, eg, PRI1
CUST 0
TRK PRI2
PCML A Note: A = overseas / MU = the US, and switch to switch
NCOS
ROUT X 1 Route number and first member
CLS DTN Don't forget tone dialing!

Step 5. LPTI (Loop Timers)

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

LD 73

NEW: PRI2
TYPE LPTI
FEAT LPTI Loop number of PRI card location or CEQU PRI2 defined loop
LOOP L Loop
MFF CRC CRC or sometimes AFF

Step 6. SYTI (Clocking)

LD 73

NEW: PRI2
TYPE PRI2
FEAT SYTI
CCO
PREF L Loop for CC0 primary clock reference
SREF L Loop for CC0 secondary (alternative) clock reference
CC1
PREF L Loop for CC1 primary clock reference
SREF L Loop for CC1 secondary (alternative) clock reference

Step 7. CLID

(NET_DATA)

LD 15

CHG: PRI2
TYPE NET NET_DATA
CUST 0
ISDN YES
ENTRY 0
HLCL xx...x Digits to be inserted before DN on CLID
DIDN (YES)/NO 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

LD 60

.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.

LD 96

STAT MSDL #
ENL MSDL # FDL
STAT MSDL #
ENL DCH X

LD 60
STAT
ENLL X (Loop)
STAT X
LCNT X
RCNT X
SSCK X (0 or 1 on a large system)
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