Specifications

X723-300151 2-15 Issue 2

iv) Refit new system controller.

v) No more change-overs or removals should be attempted until the 2

minutes is completed and the off-line system controller has received

all of its configuration data from the on-line system controller. This is

indicated on the off-line system controller by the top red LED

illuminating while configuration data is being transferred, and then

extinguishing when all configuration data has been passed. If the 2

minute time-out should expire and the off-line controller is then

refitted, it is possible that some data loss will occur.

Note: Removal of a working 'on-line' card in a live system will cause data

loss and may cause a momentary change in the state of the Prompt,

Service, System and External relays.

2.3.3 Switch on Procedures

Connect a VDU, set so as to be compatible with the settings made on SW1,

to the local port. Switch on the multiplexer. On initial power up, the

3200 will automatically enter self test mode. The self test procedure

varies, depending upon the number of system controllers fitted.

Single System Controller operation:

Upon power up the 3200 will carry out a full self test.

Dual System Controller operation:

Upon power up the main system controller will carry out a full self test. If

any part of this self test fails the Standby system controller will take

control. On power up the Standby system controller will carry out an

internal self test and then wait for a change over from the Main system

controller. If the standby self test fails, it will report a failure back to the

Main system controller.

Self Test Mode

The unit incorporates a self test facility which is activated either at power

up or from menu selection and runs for a period of 8 seconds. The test will

set the following conditions:

a) Illuminate all LEDs on the on-line system controller.

b) Set all alarm relays except the System relay.

c) Run a self test configuration.

d) Each LIU fitted will have its relays set to bypass and PCM looped.

e) Sync source will be derived from the free running VCO clock.