Save the slot cover to re-use in case you remove the clock module later. An unoccupied module slot
must be covered to ensure satisfactory EMI levels and to maintain adequate airflow through the router.
Connecting a Timing Cable to the E4G-200 Router
Use the E4G-200's clock module for connecting a timing cable.
The clock module provides the following types of cable connections for connecting a Building
Integrated Timing Supply (BITS) or a GPS timing source:
•
Two mini-BNC connectors labeled IN
•
1 PPS input
•
10 MHz input
•
Two mini-BNC connectors labeled OUT
•
1 PPS or 8 KHz frame output
•
10 MHz or 2.048 MHz or 1.544 MHz output
To connect to the mini-BNC connectors, use a 50-ohm coaxial cable with a mini-BNC connector at
one end and a standard BNC connector at the other end.
•
One RJ-45 connector for time-of-day (ToD) input/output or for RJ422 BITS input
To connect to the RJ-45 connector, use a twisted-pair cable with the pinouts listed in
Table 77:
E4G-200 Clock Module RJ-45 Connector
on page 106.
Installing an E4G-400 Cell Site Aggregation Router
Installing the E4G-400 router involves the following steps.
•
Install the router in a rack: mid-mount or front-mount.
•
Install an AC or DC power supply and connect it to a power source.
•
(Optional) Install port option cards.
•
Connect optional cables and perform initial configuration.
The steps are covered in the following sections.
What’s Included
Included in the packaging with the E4G-400 cell site aggregation router are the following items:
•
Two rack-mounting brackets with eight screws
•
Console cable terminated in DB-9 connectors
•
Ferrite in-line noise filter with installation instructions
•
Power supply (AC or DC)
Installing an E4G Series Router
E4G Routers Hardware Installation Guide
46
