IP Server 900 Hardware Installation Manual
External Connections
H.2
T1/PRI
For T1 or PRI applications, the IP Server 900 can use the T1/PRI Module.
1
Depending on how you configure
it, the T1/PRI Module supports either (a.) a single T1 circuit at 24 DS0 channels or (b.) a PRI circuit
supporting 23 “B” (bearer) channels and one “D” (data link) channel. Partial T1 or PRI applications are
supported through line programming. The T1 or PRI line is connected via the appropriate M1–M4 connector
on the Carrier Card (T568B connection). The connection uses pins 1, 2, 4, and 5 as follows:
Transmit
T
Pin 1
R
Pin 2
Receive
T
Pin 5
R
Pin 4
The T1/PRI Module has built-in CSU functionality. The integrated CSU can be enabled or disabled via system
programming
2
. The following functionality is provided: line, payload, DTE and none (normal operation)
loopback modes with the ability to respond back controlled via system programming; alarm conditions, and
both ANSI T1.403 and TR 54016 performance messages for ESF only.
Important:
If you’re installing more than one T1 or PRI, the T1/PRI Module in the lowest number slot will
synchronize (“slave”) the system with the public network. The system will synchronize to only one clock
source. Therefore, ESI
strongly
recommends that the first T1/PRI Module in the system be connected to
the T1 or PRI that’s connected either to the local CO or the nationwide long-distance provider, either of
which typically will provide very-high-accuracy clocking (Strata 3). The T1/PRI Module doesn’t provide
master or sub-master clocking for private-network T1 spans.
When working with a T1 line, the T1/PRI Module supports these CO types:
•
Loop start
•
Ground start
•
E&M
(including
E&M–DID/DNIS/ANI
) — When an E&M CO is selected, the choices for
out
going
signaling type are immediate start, wink start and dial tone start; and the
in
coming signaling type choices
are immediate start and wink start. The E&M CO can be set for 2-way traffic, inbound traffic only or
outbound traffic only.
The
DID and DNIS/ANI translation table
allows the translation of DID/DNIS digits to an ID, mailbox, extension
or department. You can program 600 entries in the table. There is also an entry for exceptions in the table.
This allows reroutes of any DID/DNIS calls that aren’t programmed or detected to an ID, mailbox, extension
or department and defaults to the operator.
The card supports the following framing format and line coding:
•
ESF/B8ZS
(default)
•
SF(D4)/AMI
•
ESF/AMI
•
SF/B8ZS
Line compensation (or line build-out) is provided as necessary between the CSU or Smart Jack
™
and the
IP Server 900.
The system does not support pulse dialing; all incoming dialing will default to DTMF digits.
When working with a PRI line, the DLC (
i.e.
, the DLC, DLC12, or DLC82) supports these switch protocols:
•
National-NI2
(default)
•
Nortel-DMS100
•
AT&T/Lucent-5ESS
•
Siemens-EWSD
DID for the PRI is an enable/disable field. When DID is enabled, the PRI pilot table becomes active and works
in combination with the DID tables.
1
You may wish to review “Module options,” page A.3.
2
See the explanation of Function 2124 in the
IP Server 900 Programming Manual
(ESI #0450-1307).