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User and Installaon Manual

Compact MPA

8.4.2 MPA 1601/1643 TALK UNITS

The 1643 unit is an EX variant of the MPA 1601 talk unit, and the procedure to test this unit is idencal to the 1601.

8.4.2.1 NORMAL PAGING

Paging may be performed in any combinaon of the six zones. Zones are selected by the MPA 1601 zone-keys, and

acvated by the PA-key. These zones are not reset automacally aer the message. Default zone selecon for the PA

funcon is “All ex Cabins (Zone 1)”

The PA-key must be connuously pressed during messages.

Check that each message is preceded by

a chime aenon signal (Ding-dong)

Pass/Fail

8.4.2.2 EMERGENCY PAGING

Emergency paging is acvated by keeping the EM-PA-key pressed down connuously for more

than a second.

The EM-PA-key will automacally select all zones and turn their LEDs green.

Check that each message is preceded by



Pass/Fail

8.4.2.3 INDICATORS

System status for A and B system is indicated on the user panel. When congured as a single

system, the system B led is not used.

A green led indicates a healthy system.

A red led means there is a system failure.

Backlight and LED’s are dimmed synchronously.

The intensity is adjusted in ve steps, from low to high, by pushing the MPA 1601 DIM-key.

The DIM key will also dim the MPA 1603 alarm panel connected to the same user interface bus.

At the current acve user-panel, the acve zones are indicated by a green LED.

For all other users acve zones are indicated with a red LED.

Pass/Fail

jotron MPA 1603 GA User Manual

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