Wiring Parameters - Simplex 4007-9101 Installation Manual

6.5 Wiring parameters

Table on page 31 identifies the IDNet wiring parameters that you must consider when installing this card. For additional wiring information, see
Simplex Addressable Fire Alarm Panels Field Wiring Specifications (900-408).
Table 23: IDNet wiring parameters
IDNet wiring capacitance parameters
Parameter
Maximum supported channel capacitance
IDNet wiring Class A and Class B limits
Channel loading
Max. resistance to compatible devices. (Include the
2081-9044 Overvoltage Protector resistance when
applicable)
Maximum wiring distance*:
(18 AWG, 16 AWG, 14 AWG, 12 AWG)
NOTE:
• The maximum wiring distance is the maximum distance from both the IDNet control terminals (primary and return) to the farthest device on the
circuit. See Figure 24: Maximum wiring distance on page 31.
• The maximum wiring distance is determined by either reaching the maximum resistance, the maximum capacitance, or the stated maximum
distance, whichever occurs first.
• The total circuit cable load (amount of cable used) must not exceed 12,500ft (3,8km).
• Twisted wiring is recommended for improved noise immunity.
Table 24: IDNet wiring considerations
IDNet wiring considerations using
2081-9044 Overvoltage Protectors
(2081-9044 is UL listed to Standard
1459, Standard for Telephone
Equipment)
Page 31
Up to 125 devices
50 ohms maximum
4000 ft (1219 m)
Fig 24: Maximum wiring distance
External wiring must be shielded (for lightning suppression) and 2081-9044 Overvoltage Protectors must be
installed at building exit and entrance locations.
For more information, refer to the Model 2081-9044 Overvoltage Protector Installation Instructions
(S4906-0016).
Capacitance; each protector adds 0.006 µF across the connected line.
Resistance; each protector adds 3 ohms per line of series resistance; both IDNet wires are protected; 6 ohms
per protector will be added to the total loop resistance.
The maximum distance of a single protected wiring run is 3270 ft (1 km).
See the 2081-9044 Overvoltage Protector Installation Instructions (574-832), for additional information.
4007ES and 4007ES Hybrid Fire Alarm Systems Installation Manual
Value
The sum of line-to-line capacitance, plus the capacitance of either line-to-
shield (if shield is present) = 0.6 µF
126 to 250 devices
35 ohms maximum
2500 ft (762 m)
579-1102 Rev H