Extreme Networks E4G Series, Hardware Installation Manual

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Installing the E4G-200 Series Cell Site Routers
E4G Series Routers Hardware Installation Guide
55
Figure 26: Installing a T1/E1 Module
5 To initialize the T1/E1 module, reboot the router.
NOTE
The T1E1 module has internal lightning protection; therefore, the use of outboard lightning protection for
this module is optional.
Save the cover for later re-use in case you must remove the T1/E1 module and do not have a
replacement module. An unoccupied module slot must be covered to ensure satisfactory EMI levels and
to maintain adequate airflow through the router.
To connect the ports on the T1/E1 module, use a standard T1/E1 crossover cable with RJ-48C
connectors and the pinouts listed in
Table 24 on page 128 .
NOTE
Although shielded cables are used in most central office applications, the T1/E1 ports on Extreme
Networks E4G routers do not require shielded cables to comply with emissions and immunity requirements.
Connecting the Alarms Cable
You can connect the E4G-200 series router to external alarms (for example, the aisle alarms in a central
office) using the Alarm connector on the front of the E4G-200 series cell site router. The alarm interface
is implemented as a DB-15 connector. To connect this port, use #28 AWG solid-wire cable terminated in
a DB-15 male connector. The connector should have the pinouts listed in
“E4G-200 Series Connector
Pinouts” on page 126 .
NOTE
There are different levels of alarm input voltages between boot ROM versions 3A1 and 4A1. You should
check your boot ROM version to ensure you are on the latest version before connecting the alarm input cable to the
system.
CSR_014