Communications Systems | PRS‑CSR Call Station Remote
The PRS‑CSR is a call station with the same functionality as
the basic call station, LBB 4430/00, but it uses CAT-5 cable
for its connection to the Praesideo network. It connects,
one-to-one, to the call station interface, PRS‑CSI, which is
part of the Praesideo optical network. The CAT-5 cable,
carrying digital audio and control data, can be as long as
1 km. The length of the CAT-5 cable is not a part of the
Praesideo optical network length. This considerably
increases the overall possible length of the optical network.
The PRS-CSR can be extended with up to 16 keypads
(LBB 4432/00 or LBB 4434/00), each with eight
programmable keys. Extension with a numeric keypad
(PRS‑CSNKP) is also possible.
Functions
The call station has a cardioid, supervised microphone on a
gooseneck stem with good speech intelligibility. A limiter
and a speech filter improve intelligibility and prevent
clipping of the audio. It has a volume control for the
monitoring speaker and the headset. When it plays a chime
or a pre-recorded message, the call station activates its
speaker. When a headset is connected, it replaces the
microphone and speaker.
The remote call station connects via a CAT-5 cable to an
PRS‑CSI unit, which interfaces it to the Praesideo optical
network. The call station gets its power from the interface
unit via the CAT-5 cable, but is also equipped with a local
power supply connection for extreme cases with a very long
cable and many keypads.
Up to 16 call station keypads can connect to the station via
a serial communication link. The call station provides the
power for the keypads. Up to 224 priorities can be assigned
to the call station. All configuration can be done via the
Praesideo network controller.
The remote call station is fully supervised and complies with
IEC 60849. The call station supports fail-safe operation.
Even if the Praesideo network controller fails, the call
station is still able to put through emergency calls.
Controls and indicators
•
Three status LEDs
•
Configurable PTT-key
•
Volume control for loudspeaker/headset
Interconnections
•
RJ45 connector for CAT-5 connection
•
Serial data and power supply interface for call station
keypads
•
Kycon type (lockable) connector for power and two
control inputs
•
3.5 mm jack for headset/headphone
PRS‑CSR Call Station Remote
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Connects to call station interface via CAT-5 cable
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Up to 1 km from Praesideo optical network
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Uses standard Praesideo keypads for extension
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Built-in limiter
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Powered via CAT-5 and/or local power supply
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Complete supervision
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IEC 60849 compliant
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