Specifications

Page 15–4
FOCUS System Manual
15.4.1 Status Indicators
This module has 19 status indicators, as shown in
Figure 15-4. The red/green status LED is green if
the module is functional and red if the module is
non-functional. The green LED labeled CHNL
OK, just above the status LED, is lit when the
module is communicating with another CTR
module. The red LED labeled CHNL ALM is lit
when the module is not communicating with
another CTR module. The remaining 16 LEDs,
which are all green, indicate when one of the eight
contact closure circuits are transmitting or
receiving. The LEDs labeled OUT1–OUT8, when
lit, indicate the module is receiving on the desig-
nated circuit(s). Those labeled IN1–IN8, when lit,
indicate the module is transmitting on the desig-
nated circuit(s).
Figure 15–4. Contact Transfer (CTR) Module
Status Indicators.
15.5 Acceptance Test
As noted earlier, we recommend that you initially
install and test CTR modules in “test” chassis
(i.e., chassis that are not part of an operating
network). This way, you can quickly perform the
acceptance tests without interfering with a live
network.
To conduct these tests, you will need the
following:
•Two CTR modules and interfaces
•Two FOCUS chassis
• One assigned time slot on the FOCUS
T1/E1 line (i.e., both CTR modules must
have the same assigned time slot)
•Amulti-meter (we recommend an analog
multi-meter for easier determination of
readings)
•Avoltage supply source having an output
range of 48–250Vdc with a control switch
to turn the voltage on and off (this applies
the key-in needed to test the modules’
circuits)
•Up to 14 AWG stranded wire for jumpers
To test the functionality of the Contact Transfer
Modules complete the following steps:
1. Install the CTR modules and interfaces.
If the two modules and interfaces have not
been installed, do so now following the
instructions in the “Installation” section
earlier in this chapter. Designate one chassis
as the local terminal and the other as the
remote terminal.
When you first install a CTR module in a live,
unlocked chassis, 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, the status LED
stays red, even after 20 seconds have elapsed.
This is the first acceptance test.
2. Start the FCS.
Bring up the FOCUS Configuration Software
(FCS), if it is not already running, by clicking
on the FCS program icon .
3. Bring the FOCUS chassis “on line”.
Click on the “Online” speed button
.