Philips LBB 5800 用户手册

INSTALLATION INSTRUCTION 69

DP 6000 DIGITAL PAGING SYSTEM 

Page 15/15

December 1997

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Key to symbols
1.

Handset (LBB 5804 optional)

: Can be use instead of the desk microphone and speaker

2.

Display window

: LCD to display 16 digit information

3.

Power On indicator (LED)

: Green

4.

Transmission On indicator (LED)

: Red

5.

Desk-in-use indicator (LED)

: Yellow

6.

Program key

: Used to program the desk and additional receivers into the system

7.

Direct call key

: Used to  send one of 16 possible preprogrammed messages to selected receivers

8.

Call transmit key

: Used to transmit a call

9.

Monitoring key 

: Used to enable or disable the talk-back to the desk

10. Alarm call key (Red)

: Priority key used to call a receiver in an emergency situation

11. Reset key (Blue)

: Used to reset the call desk

12. Talk-through key 

: allows the operator to connect a speech call between two transceivers

13. Talk-key 

: Used to activate the speech mode of the desk.

14. Microphone

: Located beneath the grille

15. Priority key

: If the system is occupied with a speech call, the key gives the desk priority over this call 

16. Keyboard

: Call selection keys (0 - 9) and (A, B,C, D, E and “-”) 

LBB 5800 High Performance Control Desk