BOSCH PRS-CSRM Remote Call Station Module (replaces PRS-CSRK)

BOSCH PRS-CSRM Remote Call Station Module (replaces PRS-CSRK)

The PRS‑CSRM is a professionally designed module that comes along with the same functionality as the remote call station, PRS‑CSR, but without its housing and other components. It is a building block for making a custom call stations or panels. It is capable of connecting with the use of a CAT‑5 cable, 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, are capable to be as long as 1 km. The CAT‑5 cable does not contribute to the Praesideo optical network length. This considerably increases the overall possible length of the network. The PRS‑CSRM are possible to be extended along with up to 16 keypads (LBB 4432/00 or PRS‑CSKPM), each comes along with eight configurable keys. Extension with a numeric keypad (PRS‑CSNKP) is also possible.

• External power supply input and 2 control inputs
• Serial data and power supply interface for call station keypads
• Microphone
• Loudspeaker
• Buzzer
• Headset
• Volume control for loudspeaker/headset
• Control input (for Press‑to‑Talk button)
• Five control outputs (for status LEDs)

Electrical

Power consumption 4 W at 48 V without keypads
External power supply 18 to 56 VDC

Microphone

Sensitivity -63 to -48 dBV
SNR >60 dB at -55 dBV
Frequency response 340 Hz to 14 kHz (-3 dB)

Loudspeaker output

S/N 80 dB ±3 dB at max.
Impedance 8 to 32 ohm
Power 100 mW typ., 300 mW max.

Headset

Input sensitivity -52 to -37 dBV
Earphone impedance >16 ohm

Status outputs 5 x open collector / drain
Max. current (internal) 10 mA per pin; 30 mA total
Max. voltage 56 V per pin
Max sink current 100 mA per output pin

Control inputs 2 x
Operation Closing contact (with supervision)

Mechanical

Dimensions (H x W x D) 43 x 183 x 164 mm
(1.69 x 7.20 x 6.46 in)
Weight 0.8 kg (1.76 lb)
Mounting Stackable metal enclosure

Environmental

Operating temperature -5 ºC to +55 ºC (+23 ºF to +131 ºF)
Storage temperature -20 ºC to +70 ºC (-4 ºF to +158 ºF)
Humidity 15% to 90%
Air pressure 600 to 1100 hPa