Specifications

Diagrams are for reference only.

Consult the appropriate installation sheet for wiring details.

SIGNATURE DATA CIRCUIT MAXIMUM WIRE LENGTH CALCULATIONSSIGNATURE DATA CIRCUIT MAXIMUM WIRE LENGTH CALCULATIONS

SIGNATURE DATA CIRCUIT MAXIMUM WIRE LENGTH CALCULATIONS

REFERENCE SECTION

Use this worksheet to determine the maximum amount of wire you can use to

construct a Signature loop.

Step 1: Step 1:

Step 1: Calculate the total amount of wire you can used based on the cable

manufacturer’s capacitance per foot rating. Total amount of wire shall not exceed the

values listed in Table .

Determining the total loop length

The total loop length is the sum of the lengths of all the wire segments installed in the

data circuit.

If the cable manufacturer’s data indicates the capacitance per foot of the cable, the

following method may be used to determine the maximum total loop length.

Note: In no case may the total loop length of a Signature data circuit exceed 20,000

feet (6,098 meters).

Wire Size

Wire type 14 AWG 16 AWG 18 AWG

Twisted pair 13,157 ft (4,010 m) 13,888 ft (4,233 m) 20,000 ft (6,096 m)

Twisted-shielded pair 5,952 ft (1,814 m) 6,098 ft (1,859 m) 8,621 ft (2,628 m)

Non-twisted,

non-shielded pair

20,000 ft (6,096 m) 20,000 ft (6,096 m) 20,000 ft (6,096 m)

The total length of all the cable installed in the Signature data circuit can not exceed

the values listed below:

Table C-1: Maximum amount of wire you can use to construct a Signature loop

Signature

Controller Module