Siemens FS-RD2, Installation Instructions

Siemens Industry, Inc.

Building Technologies Division 
Florham Park, NJ 
 

P/N 315-049103-6 

 
 
INSTALLATION INSTRUCTIONS  
Model FS-RD2/-R  
REMOTE LCD ANNUNCIATOR 

 
The FS-RD2 Remote LCD Annunciator is an optional accessory for the FS-250 Fire Alarm System Control 
Panel. The FS-RD2 is black and the FS-RD2-R is red. The FS-RD2/-R provides a 4x20 character LCD display 
along with the system status LEDs that display the event status of the system. The enable keyswitch allows 
system reset, trouble silence/acknowledge, alarm silence and menu access for partial system control. The lamp 
test operation is also enabled by the keyswitch and is limited to the annunciator. The annunciator mounts to a 
horizontally mounted 6-gang box, 2” deep minimum. The FS-RD-SB/-R Surface Backbox may be used for 
surface mounting. The FS-RD-SB is black and the FS-RD-SB-R is red. 
 
 

PARTS SUPPLIED 

1 

FS-RD2/-R Remote LCD Annunciator 

4 Mounting 

Screws 

1 Instruction 

Sheet 

1 Operating 

Instructions 

BUTTON ENABLE

ON

OFF

M2

MENU

M1

M4

ALARM SILENCE

ACKNOWLEDGE

M3

SYSTEM RESET

4-

1/

2"

ALARM 

SILENCED

ALARM 

PRE-

ALARM

SUP

TROUBLE

POWER

FS-RD2/-R DIMENSIONS 

FS-RD2/-R WIRING 

Power Limited and Supervised

Step 1.)  Installation is to be done by qualified personnel who 

have thoroughly read and understood this instruction 
sheet. 

Step 2.)  Disconnect BATTERY and AC prior to working on 

equipment. 

Step 3.)  Mount 6-gang backbox horizontally as required. 

Step 4.)  Set dip switch for proper remote address (see page 2). 

Step 5.)  Attach conduit and run wires as required. 

Step 6.)  Connect IN wires from fire alarm system control unit or 

previous remote as required. 

Step 7.)  Connect OUT wires to next remote or 120 ohm E.O.L. 

Resistor Assembly (P/N 140-050008-1), if last remote. 

Step 8.)  Attach unit to backbox, using four mounting screws. 

Step 9.)  Apply power to system. 

Step 10.)  Check for proper operation of functions. 

FS-RD-SB/-R DIMENSIONS

Notes: 
1.) 

Units to be installed in accordance with all local codes. 

2.) 

T-Tapping is not allowed! Communication wiring must 
be daisy chained from remote to remote.  

3.) 

Terminal block will accept a maximum of 12 AWG 
wiring and minimum of 18 AWG. 

4.) 

Use twisted pair cable with a characteristic impedance 
of approximately 120 ohms. 4000 feet maximum 
distance from panel to last remote. 

Cable for power (+ & -) 
and twisted pair cable for 
data (X+ & X-) from panel 
or previous remote and to 
next remote or 120 ohm 
E.O.L. Resistor Assembly 
(P/N 140-050008-1) on the 
last remote.