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9. WIRING DETAILS
X1 - 9-pin D-type socket for connection to the High Performance
desk (LBB 5800)
Pin No. Function
1 +12 V power supply from the desk
(fused at 1 AT)
2 not connected
3 not connected
4 RS 422 serial int. B (extra 220 Ohm)
50 V
6 + 12 V power supply from the desk
(fused 1 AT)
7 not connected
8 RS 422 serial int. A (extra 220 Ohm)
90 V
screening not connected
X2 - 9-pin D-type socket for external alarm functions
Pin No. Function
1 make - relay contact RE1
2 break - relay contact RE1
3 middle - relay contact RE2
4 make - relay contact RE3
5 break - relay contact RE3
6 middle - relay contact RE1
7 make - relay contact RE2
8 break - relay contact RE2
9 middle - relay contact RE3
screening not connected
Relays can only be used on voltages not exceeding
34 VDC and a current of 1 A maximum.
2.5 m long interconnecting cable between desk and FCP
wiring details:
(9-pin D-type on FCP - 25-pin D-type of Desk)
Pin No. (9-pin) Wire Pin Nr. (25-pin)
1 (+12V) blue 23 (+12V)
6 (+12V) red 25 (+12V)
5 (0V) black 17 (0V)
9 (0V) grey 24 (0V)
4 (RS422 B) green 14 (RS422 B)
8 (RS422 A) yellow 16 (RS422 A)
2 ) others not
3 ) not connected connected
7 )
Cable length between the LBB 5800 Desk and the LBB 6005 FCP may be extended to a distance of approx. 1000 metres.
Bear in mind that if the Desk is separated from the FCP, that speech communication with the PST is via the microphone/speaker in the
Desk.
DP 6000 DIGITAL PAGING SYSTEM INSTALLATION INSTRUCTION 69
December 1997 Page 10/15
FCP Rear view
X2
X1