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Chapter 3 - Operation FLM-1

Installation & Operation Manual

3-2 Operating Instructions 09/01/01 4:29 PM

Table 3-1 lists the functions of the FLM-1 indicators and switches.

Table 3-1 FLM-1 Indicators and Switches

Identification

Name Type Function

1 POWER LED Indicator

(green)

Lights up when the unit is powered.

2 TEST LED Indicator

(yellow)

Lights up when either local or remote unit is

performing a loopback test.

3 SYNC LOSS -

LOCAL

LED Indicator

(red)

Lights up when synchronization is lost at the local

unit.

4 SYNC LOSS -

REMOTE

LED Indicator

(red)

Lights up when synchronization is lost at the

remote unit.

5 LLB Push button When pressed (pushed in), the unit performs a

local loopback.

6 RLB Push button When pressed (pushed in), the unit performs a

remote loopback.

Note

Pressing LLB and RLB simultaneously has no effect; the unit just continues to

operate normally.

3.3 Operating Instructions

Power Turn-On

To apply AC power to FLM-1, connect its power cord to an acceptable AC

source. The POWER LED should light up. If the local and remote FLM-1

units are in operation and properly connected via the main channel, no

other indicator should be ON. If it is not so, refer to Chapter 4 for

troubleshooting information.

Operation

FLM-1 operates entirely unattended except when performing system tests.

Power Turn-Off

To turn off FLM-1, simply remove the AC power cord from the AC source.

Operational Field

Strapping

Changes

If it becomes necessary to reconfigure FLM-1 for twelve-channel mode or

six-channel mode operation, follow the appropriate setup procedure

described in Section 2.4.

Warning

Access to the inside of the equipment is permitted only to authorized

and qualified service personnel.

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