3
CABLE REQUIREMENTS
DIMENSIONS
CARTON INVENTORY
Power Supply:
12 Vac 20 VA
Unit (unlocked) (1)
Key (1)
12 Volt ac 20VA Plug-In UL Listed Power Transformer (1)
Manual (1)
8-3/4"
6"
3-3/4"
3/4"
1/4"
3"
3"
4-1/4"
2-3/4"
SPECIFICATIONS
>> CABLE REQUIREMENTS, DIMENSIONS AND CARTON INVENTORY
Outdoor installations require shielded cable. Non-shielded cable can be used for indoor installations ONLY.
PROCESSOR BOARD
WIRE TYPE
RECOMMENDATIONS
From the power transformer at 120 Vac outlet
2 - Conductor Cable
Shielded Only - See
Power Wire Table Below
From the door strike, maglock or gate operator
2 - Conductor Cable
See device specifications for wire size
From the strike power supply (if needed)
2 - Conductor Cable
See device specifications for wire size
From the Earth ground to processor board
12 AWG copper wire,
PVC insulated
or
12 AWG copper wire,
uninsulated
Belden #9912
Belden #8011
Residence and Telco phone lines
24 AWG twisted
pair telephone wire
Shielded - Belden #9502
From the Processor Board
24 AWG twisted
pair telephone wire
Shielded - Belden #9502
Between Processor Boards on
multiple entrance installation
24 AWG twisted
pair telephone wire
Shielded - Belden #9502
POWER WIRE TABLE
NOTE:
Chamberlain is not responsible for conflicts between the information listed in the above table and the requirements of local building
codes. The information is for suggested use only. Check local building codes before installation.
DISTANCE
AC POWER WIRE SIZE
Under 30 feet
18 AWG
30 - 75 feet
18 AWG
75 - 150 feet
18 AWG
150 - 250 feet
16 AWG
250 - 500 feet
12 AWG
