User manual

Chapter 2. Installation
61200105L3-1A E&M+ Dual Voice Option ModuleUser Manual 2-7
POWER UP TESTING AND INITIALIZATION
The E&M+ voice module executes a partial self-test during the
power up sequence, as described in the TSU 100/120/600 manual.
A full self-test can be activated from the T
EST menu. No
initialization input is required. Any previously configured setting
for the option module is restored automatically upon power up.
Successful Self-Test
The green OK LED, located with the module LEDs on the TSU
front panel, turns O
N when a successful self-test is completed and
the configuration is successfully restored. See Front Panel
Operation in the TSU 100/120/600 user manual.
Failed Self-Test
If the E&M+ voice module fails one or more of the self-tests, the
LCD displays a failure message during power up. Appendix B,
E&M+ Failure Messages on page B-1, describes specific failures
of the E&M+ voice module. (Also see the TSU 100/120/600 user
manual.)
Operation Alarms
When an alarm condition exists, the Red Alarm LED, located with
the module LEDs on the TSU front panel, turns O
N.