BOSCH Plena Voice Alarm Router LBB 1990/00


The Bosch LBB 1992/00 Plena Voice Alarm Router is an expansion unit that can add six zones and 12 input contacts to the Voice Alarm System. It can use the built-in amplifier on the LBB 1990/00 Voice Alarm Controller, and provides inputs and outputs for one or two amplifiers in a multi-amplifier one or two-channel system.

The LBB1992/00 provides dual channel operation for calls and BGM simultaneously to a maximum of six different zones, using two Plena amplifiers. Additionally, single channel operation is possible with only one Plena amplifier. Multiple routers can also share one amplifier, including the internal amplifier on the controller unit. It is possible to  use any number of amplifiers from one up to the number of routers used.

The controller supports A/B wiring.

  • Expand the voice alarm system with six zones
  • EN 54‑16 certified and EN 60849 compliant
  • 12 additional input contacts
  • Six volume override output contacts
  • Supervision within the Plena Voice Alarm System
  • Up to 9 routers can be used
  • Same functionality as system controller
  • Uses System controllers built-in amp or additional Plena booster amps

৳ 76,000 ৳ 73,000



Voltage:  230/115 VAC, ±10%, 50/60 Hz
Inrush curren: t 1.5 A @ 230 VAC / 3 A @ 115 VAC
Max power consumption:  50 VA
Idle / max load* current:  0.2 A / 0.3 A

Voltage: 24 VDC, +15% / -15%
Current max: 1.8 A
Typical / max load* current: 0.51 A / 1.5 A
Trigger Inputs: 12 x (6 EMG, 6 business)
Connectors:  MC1,5 / 14-ST-3,5
Activation: Programmable
Supervision: On EMG inputs, programmable
Supervision method: Series / parallel resistor

Connector: MSTB 2,5 /16-ST
Amp 1: 100 V / 70 V / 0 V
Amp 2: 100 V / 0 V
Power handling capacity: 1000 W
Loudspeaker outputs: 12 x (2 x 6 zones)
Connectors: MSTB 2,5 /16-ST, floating
100 V output: 700 W rated per zone
Volume override types: 3-wire, 4-wire (24 V), 4-wire failsafe

Connector: MC 1,5/14-ST-3,5
Rating: 250 V, 7A, voltage free
General purpose relays (2x): NO / COM
* Maximum load means maximum load on 24 VDC, and
indicator test.

Dimensions (H x W x D):  88 x 430 x 260 mm / (19″ wide, 2U high)
Weight Approx.: 3 kg
Mounting: Standalone, 19” rack
Color: Charcoal

Additional information



There are no reviews yet.

Be the first to review “BOSCH Plena Voice Alarm Router LBB 1990/00”

Your email address will not be published. Required fields are marked *