Specifications

December 2008 Page 8–3
Chapter 8. Framer Module
8
for proper operation of your FOCUS system.
Except for these configuration requirements there
are no significant differences to the user between
the two framer modules.
8.3 Installation
A FOCUS chassis is typically shipped with the
Framer Module already installed, along with the
other common equipment and the specified
channel modules. We recommend that you set up
the entire chassis in a test setting, attach any
necessary wiring or cables, and test its function-
ality before installing it in an operating network.
Likewise, if you are adding a new or replacement
Framer Module to your system, we also
recommend you first install and test it in a test
chassis.
If your Framer Module came already installed in
the chassis, you can skip the Hardware
Installation and Connections instructions. If your
Framer Module came separately, complete both
steps.
The FOCUS chassis provides one slot for the
Framer Module. This slot is labeled framer. It is
the second module slot from the right as you look
at the front of the chassis.
8.3.1 Hardware Installation and
Connections
To install the FOCUS Framer Module, complete
the following steps:
1. Insert the Framer Module into the chassis.
In an operational chassis containing pretested
common equipment (except for the Framer
Module), carefully insert the Framer Module
into the top and bottom grooves of the desig-
nated slot. Slide it all the way in until it is well
seated in the slot. Lock it into place using the
black inject/eject lever on the front of the
module.
2. Energize the chassis.
Energize the FOCUS chassis by applying
power.
When you first energize the chassis, and thus
the Framer Module, the red/green status LED
is red. If the module is functional, the status
LED turns green within 20 seconds. If the
module is non-functional, or if there is a
problem with the Maintenance Module, the
status LED stays red, even after 20 seconds
have elapsed.
8.3.2 Software Settings
No software settings are required to install a
FOCUS Framer Module. When using the TE1
Framer, the E1 or T1 jumper position on the MV5
determines the TE1 mode for E1 or T1.
Frame Multi-frame, Channel
Format associated signaling
Indicators Status LED
Loop back north or south
Loop back east or west
Framer synchronization lost
Blue alarm
RAI alarm
Synchronization lost in sync
direction
Functions Provides 30-channel E1
framing
Supports up to 4 E1 ports
Can supply time sync source
as the system master
Can act as slave, synchroni-
zing on either XCVR 1-1,
1-2, 2-1, or 2-2 incoming
data streams
Table 8–2. E1 Framer Specifications.
(E1 Systems Only, for use with MV4)