WWT-138E
Distributor:
Ring-Master internal communication systems are
manufactured by RingCom ASA, Norway to conform to
Quality System standards BS5750,Part 2, ISO 9002.
The Company reserves the right to modify designs and alter specifications without
notice, in pursuance of a policy of continuous improvement.
AA912/AA912-F -
Light Industrial Master Stations
Ring-Master
1.10.97
TECHNICAL DATA:
Operating voltage,
24V DC +/-20%
Current drain, microphone on: 0.1A
loudspeaker on, max: 0.2A
loudspeaker on. normal: 0.15A
station free 0.015A
Power consumption, approx. 5W
Amplifier output power, max 2W
normal 0.1 - 0.2W
Station sensitivity , 0.3V/uB
Cable requirements:
1 twisted pair for audio and signalling
1 twisted pair for power supply
Temperature range: -20 to +40ºC (4 -
104ºF)
Line specifications:
Frequency range: 300 - 5000 Hz
Galvanic line: 0 dB (1 mW/600 ohm)
Speech level: normal -12 dBm
Speech level: max +4 dBm
Tone signalling level:-10 dBm
Tone signalling according to CCITT norms
Loudspeaker impedance:
50 ohm, (min.16 ohm)
Switching level: 16 - 27 dB
Volume control regulation:
+/-7 dBm
Dimensions/weight AA912:
AA912-F
Height:
250mm
290 mm
Width:
100mm
140 mm
Depth:
62mm
62 mm
Weight:
1.1 kg
1.1 kg
sound level is reached. The call will
be set up to a preprogrammed
number.
Remote Output Card DP997
By installing the optional Remote
Output Card, any user can call this
particular station, and press an
additional number button on his
keypad to operate the Remote Output
circuit. The circuit can be pro-
grammed to operate on any number
button. The built-in relay on the
Remote Output Card is activated and
operates the external device (electric
door opener, etc.).
Features.
The AA912 station operates with the
Ring-Master Systems CB901 and
RM5000 and utilizes the following
features (* = only CB901 system):
Standard features:
- Handsfree/loudspeaking
- T-button for simplex control
- Privacy
- Microphone cut-off
- Camp on busy extension
- Conference
- Hurry-up tone
- Call-back
- Remote control circuits
- Data transmission
- Volume control
Individual features:
- Call numbers, free
programmable
- All/Group-call w/ reply back
- Priority
- Call forward/Secretary transfer
- Call transfer
- Hunt
- Speed dialling (*)
- Call reply (*)
- Sectoring (*)
- Direct conference dialling (*)
- Direct dialling
- Direct access
- Central Answering Service (CAS)
- Remote dialling (*)
- Status output (*)
- Open station (line) (*)
Interface features:
- Two-way mobile radio
- Radio paging
- Intersystem tie-line
- Public address
- Telephone public network
- Voice messaging
- Programme distribution (Music)
CE Certification:
AA912/AA912-F are tested and
comply with the EMC (Electromag-
netic Compatibility) directive 89/336-
EEC of the European Community and
meet or exceed the following stand-
ards:
EN 50081-1 Emission
EN 50082-1 Immunity
Layout Ring-Master
system CB901
DP979
(DP991)
DESK/WALL STATIONS
INDUSTRIAL STATIONS
DOOR STATIONS/VAND AL PR OOF STATIONS
POWER SUPPLY
RING-MASTER SYSTE M CB901-1.
2 PAIR OF C ABLE TO EACH STATION
UP TO 2 40 STATIONS
G AT E 12
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P
M
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AA904
AA916
AA9 11
AA961
AB921/AB931
AA906
AB933A
VISICALL STATION
AE111 + AA904
Closed Radio Ne twork
Tie-Line Interconne ction
Public Address System
Radio Paging System
Public Telephone Ne twork
Ring-Ma ster
F
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M
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inter co m
AA960
DP980
(DP992)
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F
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M
T
X
AA912
AB923/AB933
EXPL OSION
PROOF
STATION AF103
Ring-Ma ster
1
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*
0
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