Aiphone LE-SS-1G Leaflet

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.

+

-

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. 

Page 1

1. For flush mounting, install sub station in standard 1-gang electrical box with min. 2-1/2" 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 View

2-⅞” 3-¼”

1- ⁄  ”

15

16