Connecting T1/Pri And E1/Pri Trunks To The Mdf; Method A - T1/Pri Trunks Terminated On Rj-48C Jacks Near The Mdf; Method B - T1/Pri Trunks Terminated On Rj-48C Jacks Away From The Mdf - Mitel MiVoice Office 250 Installation And Administration Manual

Connecting T1/PRI and E1/PRI Trunks to the MDF

The installation procedure used to connect T1/PRI and/or E1/PRI spans at the MDF depends on
the type of termination used by the service provider [network provider] and how close it is to the
MDF. T1/PRI or E1/PRI trunks may be terminated on RJ-48C modular jacks [RJ45 line jack units]
or on 66-type terminal blocks.
NOTE Primary Rate Interface for ISDN service requires separate licensing.
Follow one of the termination methods (A, B, or C) outlined below and illustrated beginning on
page 162. The T1/PRI trunk is usually connected to the standard RJ-48C jack provided on the T1M
or T1M-2 module.
Method A – T1/PRI Trunks Terminated on RJ-48C Jacks Near the MDF
To install T1/PRI trunks terminated on RJ-48C jacks near the MDF:
1. Plug one end of a four-pair, non-reversing [straight through], mod-to-mod line cord into each
service provider RJ-48C jack. The other end of each line cord will later be plugged into the jack
on the corresponding T1M or T1M-2 module.
2. Make sure the connectors on the ends of each line cord are properly attached. If any of the
wires are cracked or broken, transmission problems can occur.
Method B – T1/PRI Trunks Terminated on RJ-48C Jacks Away from the MDF
To install T1/PRI trunks terminated on RJ-48C jacks away from the MDF:
1. Mount one eight-conductor modular jack [line jack unit] assembly next to each service provider
RJ-48C jack. For a diagram of the complete layout, see Figure 3 on
2. For each modular jack [line jack unit] assembly mounted in step 1, mount a corresponding
four-conductor modular jack [line jack unit] assembly on the MDF backboard.
3. Connect the modular jack [line jack unit] assemblies mounted in steps
a. Run T1 cable between the corresponding modular jack [line jack unit] assemblies.
If the service provider termination is more than 2000 ft (600 m) from the MDF, special T1 cable
must be used (see
NOTE
standard two-pair voice-frequency cable (one cable for transmit and one cable for receive)
may be used instead.
b. Wire each end of the cables onto their respective modular jack [line jack unit] assemblies.
See Figure 4 on
4. At the service provider termination, plug one end of a four-pair, non-reversing [straight through],
mod-to-mod line cord into each RJ-48C jack and plug the other end into the corresponding
modular jack [line jack unit] assembly next to it.
5. At the MDF backboard, plug one end of a four-pair, non-reversing [straight through], mod-to-mod
line cord into each modular jack [line jack unit] assembly. The other end of each line cord will
later be plugged into the jack on the corresponding T1M or T1M-2 module. Make sure the
page 87 for cable specifications). For shorter distances, two lengths of
for a diagram of the wiring.
page 162
Installation
.
page 162
1 and 2.
161