Bosch MB-WS, MB-FS User Manual

MB-FS / MB-WS

Fire Phone Station / Warden Station

The MB-FS is a Fire Phone Station designed to integrate with an BOSCH HMB system. The cabinet is red and can be either surface mounted or semi-flush mounted. A thumbturn fastener secures the cabinet door. The WS is similar to the FS, and is equipped with an armored cable assembly.

When the handset goes off-hook, the status LED illuminates, and the device will “ring in” at the HMB-MP Master Panel. When the Master Panel operator connects the call, 2 way communication is established between the Phone Station and Master Panel. The call can be terminated either by returning the handset to the cradle, or by the Master Panel operator disconnecting the switch.

Field wiring connections:

#6-32 wire clamp screw 14-18 AWG #8-32 wire clamp screw 12-18 AWG Horizontal wire entry terminal 18-26 AWG Wire gauge determined by circuit load

TB1:

Ter. 1 Fire Phone Circuit + (Tip)

Ter. 2 Fire Phone Circuit - (Ring)

TB2:

Ter. 1 to handset (white wire)

Ter. 2 to handset (white wire)

Ter. 3 to handset (black wire)

Ter. 4 to handset (red wire)

TB3:

Ter. 1 to hook switch

Ter. 2 to hook switch

LED1:

LED 1 Status

Electrical Ratings:

Power: 24VDC

Standby: 0 mA

HOOK	white	HANDSET		black
SWITCH		white	red

FACTORY WIRED

	4	3	2	1
2	1		TB2
TB3
			+	-	Must wire break
			1	2
					TB1
					to maintain
					supervision

Active: 25 mA	TIP	RING
Ground faults are indicated at 10K impedance or less.	(+)	(-)
Fire Phone		(EOLR at
Circuit
		last device)
(supervised, power limited,

maximum 50 ohm line resistance)

P/N B-5062 Rev. C	130 Perinton Parkway, Fairport, NY 11450
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