PRI programming
Small/CS1000E (IPMG)
The following applies to EUROPEAN EURO-ISDN PRI's.
- For Large/CS1000M systems (51c, 61c, 81c), see Dual PRI Installation.
- If using a Universal Digital Trunk (UDT) card, see UDT E1 PRI Example.
- For Large/CS1000M systems (51c, 61c, 81c), see Dual PRI Installation.
- If using a Universal Digital Trunk (UDT) card, see UDT E1 PRI Example.
Hardware:
The following resides in a Media Gateway card slot:
- NTBK50 2Mb PRI card *
- NTBK51 D-channel daughterboard
- NTAK20 Clock Controller daughterboard
Notes:
- Package 261 (EURO) must be present. LD 22: REQ prt, TYPE pkg
- If the PRI card is not a UDT, a D-channel daughter board (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):
| Prompt | Response | Description |
|---|---|---|
| REQ | CHG | |
| TYPE | CEQU | |
| PRI2 | l | Enter a free loop number for this PRI |
| MGC | l s c | Enter the Loop/Shelf/Card of the PRI Card location |
2. LD 17 (Build D Channel, must match parameters in the route):
| Prompt | Response | Description |
|---|---|---|
| REG | CHG | |
| TYPE | ADAN | |
| ADAN | NEW DCH # | Available D-Channel Number |
| CTYP | MSDL | |
| MGC | l s c | Loop Shelf Card location of the D-Channel Daughterboard on the PRI Card |
| PORT | 1 | |
| USR | PRI | Primary Rate Interface (eg, a D-Channel for ISDN PRA) |
| DCHL | l | D-Channel Loop number defined in the CEQU for the associated PRI Card |
| IFC | EURO | Normally EURO in Europe, but depends of the CO Switch interface. Must match Route |
| CNTY | ETSI | Normally this, but depends on the CO Switch interface. Must match Rout |
| PINX_CUST | 0 | |
| SIDE | USR | Slave. The CO is the controlling 'network' side (NET), this PBX is 'user' side (USR) |
| OVLR | YES | Overlap Receiving Allowed. |
| DIDD | Number leading of digits to be ignored for DID call during Overlap Receiving. LD 96 ENL MON ALL, ENL MSGO (loop) and 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):
| Prompt | Response | Description |
|---|---|---|
| REQ | NEW | |
| TYPE | RDB | |
| CUST | 0 | |
| ROUT | # | New Route Number |
| TKTP | DID | |
| DTRK | YES | |
| DGTP | PRI2 | Primary Rate Interface (PRI2 = ISDN 30B+D) |
| ISDN | YES | |
| MODE | PRA | Primary Rate Access 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 |
| DSEL | VOD | |
| 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 TGAR level of the instrument to allow ACOD dialing to access the route |
| CDR | YES | Yes for CDR tracking until YES is no longer accepted consecutively |
| INC | YES | |
| LAST | YES | |
| QREC | YES | |
| OAL | YES | |
| AIA | YES | |
| OAN | YES | |
| OPD | YES | |
| NDP | EXC 0 | |
| MUS | YES | YES only if a Music Route is available |
| MRT | 34 | Music Route Number, only if MUS YES |
4. LD 14 (Define the Trunks):
| Prompt | Response | Description |
|---|---|---|
| REQ | NEW 30 | We can build all 30 at once |
| TYPE | DID | |
| TN | l ch | PRI Loop and Channel (eg: 1) |
| CUST | 0 | Customer Number |
| TRK | PRI2 | |
| PCML | A | Note: A = overseas / MU = the US, and switch to switch |
| NCOS | 0 | |
| RTMB | # 1 | Route # and first member |
| CLS | DTN | Don't forget tone dialing |
5. LD 73 (System Timers and Loop Timers):
| Prompt | Response | Description |
|---|---|---|
| REQ | CHG | Change |
| TYPE | PRI2 | |
| FEAT | LPTI | Loop timers |
| LOOP | # | Loop number of PRI card, or CEQU PRI2 defined loop |
| MFF | AFF | If PRI Card is green with no activity, change to CRC, or ask CO if CRC is being used |
| : | ||
| REQ | CHG | Change |
| TYPE | PRI2 | |
| FEAT | SYTI | System Timers |
| MGCLK | # # # | Loop, Shelf, Card location of Clock Controller daughter board (on PRI card). |
| PREF | # | Card slot of PRI circuit (for primary clock reference) |
| SREF | Hit enter if no secondary reference for shelf |
6. LD 96 (MSDL and D Channel activation):
| Command | Description |
|---|---|
| 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):
| Command | Description |
|---|---|
| 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) connector.
A DSU/CSU cable (eg, NTBK04) is constructed as follows, although it may be necessary to cross TX and RX pairs:
| MDF | RJ48C | DB-15 | Signal | T-568B | Description |
|---|---|---|---|---|---|
| 23 | 4 | 9 | R |  | Transmit ring → to network |
| 48 | 5 | 1 | T |  | Transmit tip → to network |
| 25 | n/c | 2 | FGND | Frame ground | |
| 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
RJ-48 connector will prevent it from plugging into an RJ-45 jack.
The D channel will not (cannot) establish on a loop test.
Diagnostics:
| TO DISABLE LOOP: disable the DCH, disable the loop | LD 96 DIS DCH # LD 60 DISL # |
| TO RE-ENABLE LOOP: enable the DCH, enable the loop | LD 96 ENL DCH # LD 60 ENLL # |
| TO REMOVE PRI CARD: If the PRI card is removed Don't forget to |
DISABLE: LD 96 DIS DCH # - confirm D Channel is disabled DIS MSDL # # # LD 60 DISL # - PRI card is safe to remove RE-ENABLE: - PRI card re-inserted LD 96 ENL MSDL # # # FDL ENL DCH # LD 60 ENLL # |
Remote Loopback:
The RLBK x command provides a remote loopback for the provider.
| 1. Disable loop: | DISL # | - disable network and DTI/PRI cards of loop |
| 2. Activate loopback: | RLBK # | - close loop at carrier interface point for testing |
| 3. Deactivate loopback: | DLBK # | - disable remote loop back test per RLBK command |
- When loop is disabled, self test with:
SLFT #(hardware selft-test) - Check to see if telco has a loopback with
RMST #(remote self-test)