Wiring Parameters - Simplex 4100ES Installation Manual

22.7.6 IDNet 2 Card Wiring
22.7.6.1 Wiring Overview
Each output from the IDNet 2 card can be wired as either an isolated Class A circuit or as two isolated Class B circuits.
Class A wiring provides an alternate communication path that allows communication to all devices to be maintained when a single open
circuit fault occurs. Class A wiring requires two wires to be routed from the IDNet 2 Primary Terminals (B+, B-) to each device, and then
back to the IDNet 2 Secondary Terminals (A+, A-). Wiring is in/out, "T" tapping is not allowed.
Class B wiring allows "T" tapping. IDNet 2 wiring is inherently supervised due to individual device level communications. End-of-line
resistors are not required.

22.7.6.2 Wiring Parameters

Table 44 identifies the IDNet 2 card wiring parameters that must be considered when installing this card. For additional wiring information
see the applicable installation documentation, or contact your authorized Simplex Product Supplier.
Wiring Capacitance Parameters
Parameter
Maximum Supported Channel Capacitance; Total of
both loops
Capacitance between IDNet SLCs wiring (between wires
of the same polarity; plus to plus, minus to minus)
Wiring Distance Limits (see note below)
Channel Loading
Total Loop Resistance
18 AWG (0.82 mm2)
16 AWG (1.31 mm2)
14 AWG (2.08 mm2)
12 AWG (3.31 mm2)
Note: Maximum wiring distance is determined by either reaching the maximum resistance, the maximum capacitance, or the stated
maximum distance, whichever occurs first. Class A maximum distances are to the farthest device on the loop from either "B" or "A" ter-
minals. For Class B wiring, the maximum distance to the farthest device is limited to the stated Class A wiring distances. Shielded wire is
not required. Twisted wire is recommended for improved noise immunity.
Wiring Considerations using
2081-9044 Overvoltage
Protectors(2081-9044 is UL
listed to Standard 1459,
Standard for Telephone
Equipment)
22.7.6.3 Class A Wiring
To wire the Loop terminals as a Class A circuit:
1. Set the jumper assigned to the loop to the "A" position, as shown in Figure 123.
- Loop A= Jumper P1 on the IDNet 2 card
- Loop B= Jumper P2 on the IDNet 2 card
- Loop C= Jumper P1 on the first IDNet Loop cards
page 201
Table 44: IDNet 2 Card Wiring Parameters
Value
The sum of line-to-line capacitance, plus the capacitance of either line-to-shield (if
shield is present) = 0.6 µF (600 nF)
1 µF maximum (this is for multiple IDNet loops)
Class B Wiring, Total Channel Wiring
Parameters, Including T-Taps
Up to 125 devices
50 Ω maximum
12 500 ft (3810m)
12 500 ft (3810m)
Note: External wiring must be shielded (for lightning suppression) and 2081-9044 Overvoltage Pro-
tectors must be installed at building exit and entrance locations.
Capacitance: Each protector adds 0.006 μF across the connected line.
Resistance: Each protector adds 3 Ω per line of series resistance; both IDNet lines are protected; 6 Ω
per protector will be added to total loop resistance.
Maximum distance of a single protected wiring run is 3270 ft (1 km).
Refer to document number 574-832: 2081-9044 Overvoltage Protector Installation Instructions for
additional information.
4100ES Fire Alarm System Installation Guide
Class A Wiring, Total Channel Wiring
Parameters
126 to 250 devices Up to 125 devices
35 Ω maximum 50 Ω maximum
4000 ft (1219 m) per
loop, 12 500ft (3810m)
total
5000 ft (1524 m) per
loop, 12 500ft (3810m)
total
126 to 250 devices
35 Ω maximum
2500ft (762 m) per
loop, 10 000ft (3048m)
total
2500ft (762 m) per
loop, 10 000ft (3048m)
total
574-848 Rev. BQ