Aiphone LESS1G Instructions User Manual

							- INSTRUCTIONS -
The LE-SS-1G is a 1-gang stainless steel vandal proof and weather resistant sub station designed for use with the 
LEM, LEF, LAF/LDF-C, AP-M, and MP-S systems. This unit is constructed with 12 gauge stainless steel and can be 
flush mounted into a 1-gang box, or surface mounted with the SBX-1G. Each unit includes tamper proof screws and a 
tool for installation.
Vandal and Weather Resistant 1-Gang Sub Station
+
- WIRING DIAGRAMS:
1
2
~
10
E
+
-Red
Blk*
Blu
Red
Blk*
Blu
LEF, LAF/LDF-C 
Master Station*
LE-SS-1G
PS-1225UL* In a single master LEF system 
only, 2 conductors homerun can 
be used with the BLK and BLU 
wires tied together and E and - 
jumpered at the master station.
+
-
1
E
+
-Red
Blk*
Blu
LEM Master LE-SS-1G
*LEM-1 or LEM-3: Use SKK-620 
(6V DC)
LEM-1DL: Use PT-1210N 
(or any source providing  
12-16V AC or 12-24V DC)
Jumper Blue & Black 
wires together.  LEM SYSTEM:
LEF, LAF-C, or LDF-C SYSTEM:
Page 1
INSTALLATION:
1. For flush mounting, install sub station in a 1-gang electrical box with Minimum 2-⅛ Width and 2-½” Depth.
2. For surface mounting, install sub station in the SBX-1G surface mount enclosure.
3. IMPORTANT!This unit is designed for use in normal weather conditions, and is made to allow for drainage and 
evaporation of moisture that naturally gets into it. Do not apply caulking or silicone sealant around the unit 
when installing, and do not use weather stripping around the perimeter of the box when mounting.If 
sealing the unit is required, the bottom must remain unsealed. Sealing the unit will prevent or inhibit moisture from   
dissipating from inside the unit, which may cause corrosion or deterioration to the internal components over time. 
Warranty does not cover damage caused by sealing the unit.
Power 
Source*
LE-SS-1G
2 conductor 
shielded wire
3 conductor 
shielded wire
WIRE COLOR CODE DEFINITIONS:
Red: + side of speaker & call switch, connect to # of master
Black: Common communication, connect to E of master
Blue: - side of call switch
Back View2-⅞”3-¼”
1-⁄  ”15
16
LE-SS-1G 
						

							Aiphone Corporation
www.aiphone.com
[email protected]
P: 800.692.0200LE-SS-1G Instr.
0912JD
SPECIFICATIONS:
Power Source: Supplied by master station
Speaker: 20 ohms, 4W, 1.92 square, water proof and puncture resistant, 0.44 oz. magnet
Call Button: SPST call button. Call tone rings at master as long as button is held down. LED will 
remain lit for approx. 20 seconds (LEF, LEM-3, MP-3S, AP-5/10M only). Call tone 
only on LEM-1DL, LEM-1, and MP-1S. Limited stop button.
Communication: Hands free at sub. Master is push-to-talk,release-to-listen.
Faceplate: 12 gauge stainless steel
Mounting: Flush mount into a 1-gang box with Minimum 2-1/8 Width, 2-½” Depth. 
Surface mount into SBX-1G, sold separately. 
Tamper proof screws included (6x32 for use with flush gang box) with T-10 TORX bit. 
Use hardware included with SBX-1G when installing sub into that unit. 
Terminations: Color-coded prewired pigtails
Operating Temperature:Speaker rating: -67°F  to 185°F (-55° to 85°C)
Switch rating: -40
F to 257°F (-40°C to 125°C)
Wiring: 2 conductors in a 1-master LEF and MP-S system. 3 conductors in a multi-master 
LEF system. Shielded cable is recommended.  Use Aiphone #822202 for LEM, MP-S,
and AP-M. Use #822202 or #822203 for LEF.
Wiring Distance: See system that unit is being used with for distance specifications.  
Dimensions (H x W x D):LE-SS-1G alone:  4-1/2 x 2-3/4 x 1-5/8
With SBX-1G:  4-9/16 x 2-15/16 x 2-7/8 (Top) 2-1/8 (Bottom)
WIRING DIAGRAMS:
1
(2)
(3)
E
+
-
MP-S/AP-M
+
-
PS-1225UL
(MP-S only)
MP-S/AP-M SYSTEMS:
WIRE COLOR CODE DEFINITIONS:
Red: + side of speaker & call switch, connect to # of master
Black: Common communication, connect to E of master
Blue: - side of call switch
Red
Blk
Blu
LE-SS-1G
Jumper Blue & Black 
wires together. 
2 conductor 
shielded wire
OPERATION:
1. To place a call from the remote station: Press call button once, then release and wait for a response from       
the person at the master station.  The call tone will be heard at the master for the duration of time the call 
button being pressed. The LED will be lit for approximately 20 seconds.
2. To answer the call at the master station: Press the channel selector button with the lit LED, which              
indicates which remote has called in. Press TALK button to talk, release to listen.
NOTE: On LEM-1 master, just push TALK button. There is not a channel selector button on that model. 
3. Speak hands free at the remote station.
4. To conclude the call, press the OFF button.
5. To initiate a call from the master station to the remote, simply press the channel selector button, then                     
TALK to speak to the person at the remote. 
6. Press OFF to conclude the call. Intercom wiring must be run at least 20 away from any AC wiring, fluorescent lighting, 
dimmer switches, or any other electronic device that may cause interference.