Bosch- LBB1956/00 Plena Call Station

Bosch- LBB1956/00 Plena Call Station

  • Stylish six‑zone call station for the Plena Voice Alarm System
  • Six zone selection keys, all-call key and momentary PTT-key for calls
  • Selectable gain, speech filter, limiter, and output level for improved intelligibility
  • LED indications for zone selection, fault, and emergency state
  • Call station extension provides seven additional zone and zone group keys

Each call station supports six zone selections. The number of selectable zones or zone groups can be increased by connecting call station keypads (LBB 1957/00). Up to eight keypads can be added with each keypad adding seven zone or zone-group keys.
This call station features selectable gain, a selectable speech filter, and a limiter for improved intelligibility.The call station has a balanced line level output, making it possible to position it up to 1000 meters from the controller, using CAT-5 extension cables. With shielded cable, the call station can also be used in an EMC level 5 (heavy industry) environment.
DIP switches at the base of the Voice Alarm Call Station select different microphone gain levels, the call station ID, and the speech filter. A service accessible rotary control provides microphone level attenuation. LEDs on the call station show which zones have been selected. Three additional LEDs give visible feedback on the active state of the microphone and the system. Green flashing means standby (chime is sounding). Green indicates microphone active. Amber indicates that the system has detected a fault, and red indicates that the system is in the emergency state


LBB 1956/00 Plena Voice Alarm Call Station

Power Supply voltage – 24 VDC supplied by LBB 1990/00
Current consumption – <30 mA (plus <15 mA per keypad)
Nominal sensitivity – 85 dB SPL
Nominal output level – 700 mV
Input sound level (max) – 110 dB SPL
Input noise level (equiv.) – 25 dB SPLA
Frequency response – 100 Hz to 16 kHz
Output impedance – 200 ohm
Chimes Any wave file Priorities – 7
Stem length with mic – 390 mm (15.35 in)
Distortion at rated output – <1%
Colour Front panel – Charcoal with silver
Operating temperature -10°Cto+45°C
Storage temperature -40°Cto+70°C
Relative humidity – <95%
Dimension – 40 x 100 x 235 mm

Bosch- LBB1990/00 Plena VAS Controller