Central, Cb901-1, Ring-master – Ring Communications CB901EX User Manual
Page 40: Centralized power supply, Remote power supply
CB901EX Operations Manual March 2011
Page 40 of 77
Ring-Master
Central
POWER UNIT
1 2 3 4
1 2 3 4
In station AA916/AA960:
Audio and signalling, wire 5&4
Power, wire 3(+) & 6(-).
In all other stations:
Audio and signalling, wire 1&2
Power, wire 3(+) & 4(-).
CENTRALIZED POWER SUPPLY
Distance max. 350 meter (0.6 mm diam.)
1 2 3 4
Audio and signalling, 1&2 / 5&4.
REMOTE POWER SUPPLY
Distance max. 2000 meter, (0.6 mm diam)
REMOTE POWER UNIT
+ -
CB901-1
F
1
2
3
4
5
6
7
8
9
0
#
M
T
X
INTERCOM
1
2
3
4
5
6
7
8
9
T
0
X
5 9
5 4 3 6
Hirschmann, 6 pin
RJ 45, 8 pin
AA904
AA916/AA960
F
1
2
3
4
5
6
7
8
9
0
#
M
T
X
1
2
3
4
5
6
7
8
9
T
0
X
5 9
AA904
AA916/AA960
In station AA916/AA960:
Audio and signalling, wire 5&4
Power, wire 3(+) & 6(-).
In all other stations:
Audio and signalling, wire 1&2
Power, wire 3(+) & 4(-).
1 2 3 4
5 4 3 6
INTERCOM
PIN 1
PIN 8
MODULAR JACK ASSEMBLY RJ45
FRONT VIEW
Pin1
Pin3
Pin5
Termination to installation cable:
Stations using 6 pin Hirschmann plug:
AA904, AB911, AB917, AB918
and AB919.
Termination to installation cable:
Stations using 8 pin modular RJ45 plug:
AA916/AA960
Pin 1:
wire 1, audio & signalling
Pin 2:
wire 2, audio & signalling
Pin 3:
wire 3, power 24VDC, (+)
Pin 4:
wire 4, power 24VDC, (-)
Pin 5:
external loudspeaker
Pin 6:
external loudspeaker
Pin 1:
external loudspeaker
Pin 2:
external loudspeaker, remote output
Pin 3:
wire 3, power 24VDC (+), remote input
Pin 4:
wire 2, (B), audio & signalling
Pin 5:
wire 1, (A), audio & signalling
Pin 6:
wire 4, power 24VDC, (-)
Pin 7:
remote output
Pin 8:
remote input
R i n g - M a s t er
Central
POWER UNIT
CB901-1
R i n g - M a s t er
Hirschmann, 6 pin
RJ 45, 8 pin