Programming instructions

111
Upgrades and FRUs
T1/E1 Combo
The T1/E1 combo module, available only for the CX and CXi controllers at
Release 6.0, combines trunking (T1D4 and PRI ISDN/QSIG) and DSP
functionality in a single card. The Release 6.0 version of the combo
contained a single T1/E1 framer. The module also includes 32-channel
Echo Cancellation.
At Release 7.0 the combo has a resilient connection added. You can
connect T1/E1 Combo cards in a primary and a secondary controller, for
resilient operation, with a one-to-one RJ-45 cable. Enable the resilient
feature in the Digital Link Assignment form. Refer to the Resiliency
document on Mitel OnLine for instructions on how to configure T1/E1
resiliency.
Quad BRI Framer
BRI (Basic Rate Interface) is a basic ISDN service consisting of two 64
Kbps channels and a single 16 Kbps channel (see page 261 in the
Hardware Reference chapter for connection details). The Quad BRI
Framer is not supported in North America.
To add or replace a framer module:
1. Power down the controller (see page 99).
2. Disconnect all cables from the controller.
3. Remove the controller cover (see page 99, page 100, or page 101).
4. Remove the module from its packaging. DO NOT move LT/NT
jumpers.
5. Remove the blank module cover at the front of the controller, and
insert the module in an appropriate slot (see page 15).
6. If you are replacing a defective module, remove the screws and lock
washers and pull up on the module to remove it
7. Secure the module to the controller using the screws and pillars
provided with the module.
8. Put the controller’s top cover back on, and secure it with its screws
(see page 100, page 100, or page 101).
Tip: Resilient operation requires that both the primary and secondary
controllers are running Release 7.0 software. The secondary controller may
be configured with the new or old version T1/E1 Combo card or a Dual T1/E1
Framer module.