Bosch PLENA LBB1938/30 - Page 10

10 en | Connection and indicators PLENA power amplifiers
2018.11 | V1.2 | LBB193x/x0 Installation and operation manual Bosch Security Systems B.V.
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Figure5.3: LBB1938/30
Apparatus
delivered
connectored
for 230V~
Inp ut 1 Priori ty
Loo pthrou gh 1
Inpu t 2P rogra m
Loo pthrou gh 2
Inpu t 1P riori ty
2.. .24V- In put 1
0V- In put 2
Inpu t 2E nable
2.. 24V- Ena ble
0V- Mu te
100V
0
Sla ve Input 10 0V
+
+
-
-
Rated input
Power : 1600VA
O On
Main Power
BatteryInput
Fault Relays' Output
NO COM NC
O On
NO COM NC NO COM NC
Battery
Detection
Pilot-tone
Detector
InputInput
Input Output
Input 2-Progr
Power
amInput 1-Pr iority
Input 1
Pr iority
Slave Input
100V
Input 2
Enable
100V 0
2..24V
Defaul t O
GND 2..24V
Defaul t On
GND
24V DC In
Priority Only No Priority
100V 100V 0V0V
Priority Controlled Output
100V 7 0V0 0 8
Direct O ut put
100V
0
70V
0
8ohm
100V /70V
Sele ction (1 2A)
Prio rity Onl y
0
0
No Prio rity
Prio rity
F701
F702
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Figure5.4: LBB1938/70
Note that slight deviations from the rear panel layout shown may occur.
1. Priority line input 1 (XLR/balanced)
2. Level control input 1
3. Priority loopthrough output1 (XLR/balanced)
4. Program line input 2 (XLR/balanced)
5. Level control input 2
6. Program loopthrough output 2 (XLR/balanced)
7. Priority controlled loudspeaker output terminals
8. 24 Vdc power supply terminals
9. Earth connection screw
10. Mains fuse (T10A)
11. Mains connector (3-pole)
12. ON - OFF switch
13. Voltage selector (Not on LBB1938/x0)
14. Loudspeaker direct output terminals
15. Battery detection
16. Fault relay output
17. Pilot-tone detection
18. 100 V slave input terminals
19. Input 2 enable control terminals
20. Input 1 priority control terminals