- Package 261 (EURO) must be present. LD 22: REQ prt, TYPE pkg
- If the PRI card is not a UDT), a D-Channel Daughterboard (e.g. NTBK51AA) is required on each PRI card.
- No existing PRI? Check LD 15: ISDN YES / PNI 1 in NET_DATA (must match PNI in the RDB) is set for the customer.
- There must be a Clock Controller Daughterboard (e.g. NTAK20BD) on at least one PRI per shelf for clocking purposes.
- LDN0 must be defined (LD 15, LDN_DATA) for ISDN PRI DID service. The length of LDN0 determines the number of trailing digits translated as the dialed DN on PRI DID routes - usually 4.
- A PRI needs at least one trunk (channel) to be built before it will establish and STAT idle.
|NTBK43AB 2Mb PRI, with a|
NTBK51AA Daughter Board
|NTBK50AA 2Mb PRI, with a|
NTBK51AA Daughter Board
1. LD 17 (Define the Loop)
|PRI2||(Select an available loop number)|
|MGC||(enter Loop Shelf Card, LSC, number of the Media Gateway PRI Card location)|
2. LD 17 (Build D Channel, must match parameters in the route)
|ADAN||NEW DCH #||Available D Channel Number|
|MGC||# # #||Loop Shelf Card location of the D Channel Daughterboard on the PRI Card|
|DCHL||##||D Channel Loop number defined in the CEQU for the associated PRI Card|
|IFC||EURO||Normally EURO in Europe, but again it depends of the CO Switch interface and must match Route interface type|
|CNTY||ETSI||Normally this, but again, it depends on the CO Switch interface and must match Rout interface type|
|SIDE||USR||Slave to the controller. The CO is the controlling switch (NET)|
|OVLR||YES||Overlap Receiving Allowed.|
|DIDD||Number leading of digits to be ignored for DID call during Overlap Receiving.
LD 96 ENL MON ALL followed by ENL MSGO (loop) and then ENL MSGI (loop) to observe the number of digits across the D Channel and count the number of digits to strip off to have only four digits showing for the PBX
|OVLS||YES||Overlap Sending Allowed.|
3. LD 16 (Define Route Data Block)
|ROUT||##||New Route Number|
|MODE||PRA||ISDN Trunk Route (ISDN=yes)|
|IFC||EURO||This the norm, but it depends on the protocol of the CO Switch interface|
|CNTY||ETSI||This the norm, but it depends on the protocol of the CO Switch interface|
|AUTO||NO||Unless the trunks are to auto terminate to an Auto Attendant or attendant|
|ICOG||IAO||In And Out call processing|
|SRCH||RRB||Round Robin or random selection of trunks|
|ACOD||##||Access Code for the Route Dial Tone|
|TARG||1-9||leave out the level of the TGAR of the instrument to allow ACOD dialing to access the route|
|CDR||YES||yes for CDR tracking until YES is no longer accepted consecutively|
|MUS||YES||Yes if Music Route is available|
|MRT||34||Music Route Number|
4. LD 14 (Define the Trunks)
|REQ||NEW 30||We can build all 30 at once|
|TN||## ##||Loop and Channel|
|PCML||A||Note: A= overseas/MU= eg: 61C to 61C|
|ROUT||# 1||Route and first member|
|CLS||DTN||Don't forget tone dialing|
5. LD 73 (System Timers and Loop Timers)
|LOOP||Loop number of PRI card location or CEQU PRI2 defined loop|
|MFF||AFF||Normal, but if PRI Card is green with no activity, change to CRC or ask CO if CRC is being used|
|MGCLK||Loop, Shelf, Card location of Clock Controller DB. Must be defined for each Clock Controller in shelf|
6. LD 96 (MSDL and D Channel activation)
|ENL MSDL # # # FDL||Enable MSDL Loop Shelf Card) Force Down Load|
|STAT MSDL # # #||Status of MSDL Loop Shelf Card|
|ENL DCH #||Enables D Channel for PRI Card associated with active MSDL Card|
7. LD 60 (Enable PRI Loop)
|ENLL #||Enables the Loop of the PRI/DTI Card|
|ENL CC # #||Enables Clock Controller in Loop, Shelf of MGC|
|STAT #||Status of PRI/DTI loop, channels should be IDLE|
Line Interface Pinout
The circuit is presented on pairs 23/48 (TX) and 24/49 (RX) of the card slots Amphenol (RJ-21).
A DSU/CSU cable (eg, NTBK04) is constructed as follows, although it may be necessary to cross TX and RX pairs:
|23||4||9||R||Transmit ring to network|
|48||5||1||T||Transmit tip to network|
|24||1||11||R1||Receive ring from network|
|49||2||3||T1||Receive tip from network|
* DSU/CSU = Data Service Unit/Channel Service Unit, eg, the PTT modem.
See Connecting E1 / T1's for cabling details.
Loopback Adaptor Pinouts
|Loop pairs 23 to 24 on the MDF, and the circuit should enable and go green.
DB15F - Short pin 1 to pin 3 and pin 9 to pin 11
RJ48C, 8-conductor Modular - Short pin 1 to pin 4 and pin 2 to pin 5
Note: An RJ-45 connector will fit an RJ-48 jack, but the key on an
The D channel will not establish on a loop test.
|TO DISABLE LOOP:
DIS DCH #
|TO RE-ENABLE LOOP:||LD 96
ENL DCH #
|TO REMOVE PRI CARD:
If the PRI card is removed
DIS MSDL # # #
DIS DCH # (to make sure D Channel is disabled)
DISL # (PRI card is safe to remove)
RE-ENABLE: (card re-inserted)
ENL MSDL # # # FDL
ENL DCH #