Chamberlain TAC1 - Manual (Page 3)

3
CABLE REQUIREMENTS
DIMENSIONS
CARTON INVENTORY
Power Supply: 12 Vac 20 VA or 16 Vdc 2.5A
Unit (unlocked) (1)
Key (1)
12 Volt AC 20 VA 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