Chapter 2. Installation/System Checkout
2-3
IDNet Wiring
• All wiring is to be 18 AWG (min.) to 12 AWG (max.).
• Conductors must test free of all grounds and stray volt-
ages before connection to appliances and panel.
• All wiring is supervised and power-limited.
• Refer to installation instructions packed with address-
able detectors for information on wiring detectors to
IDNet channel.
• IDNet voltage is 36.25V (max.) at 3333 bits/second.
• For shielded wiring, connect shield to TB2-3. Jumper
setting selects shield connection (Earth or 0V). Default
setting is 0V.
• To achieve maximum wiring distance, use low capaci-
tance wire, 29 pF/Foot or lower. If shielded wire is used,
be sure to consider shield to conductor capacitance.
• Style 7 operation requires use of addressable isolator
modules -- 4090-9116, 4098-9793, 4098-9793C. Refer
to 579-872 for information on 4090-9116; refer to 574-
706 for information on 4098-9793.
• If wiring is routed outside the building, use of a listed
secondary protector is required. Use Simplex Number
2081-9028 or 2081-9044. A protector must be installed
at each building exit/entrance. Each 2081-9028 adds .2
ohm wiring resistance. Each 2081-9044 adds 6 ohms
wiring resistance. Use of the 2081-9044 will signifi-
cantly reduce wiring distance.
• For Class B (Style 4) wiring, adhere to the following:
- Wire all addressable detectors to B+ and B- termi-
nals. Do not return wiring to A+/A- terminals.
- Maximum wiring capacitance is .58uF total. Maxi-
mum wiring resistance to any device is 52 ohms.
- System ships with jumper wires from B+ to A+ and
from B- to A-. Leave jumper wires installed for
Class B wiring.
- T-tapping is allowed for Class B wiring.
- 10, 000 feet total cable load (max.) allowed. Resis-
tance and capacitance limits must be observed.
• For Class A (Style 6 or Style 7) wiring, adhere to the
following:
- Wire from B+/B- terminals to the first addressable
device. Wire to each device in succession for a
Class A loop. From last device, wiring is returned
to the A+/A- terminals.
- Maximum wiring capacitance is .58uF total. Maxi-
mum wiring resistance to any device is 52 ohms.
- System ships with jumper wires from B+ to A+ and
from B- to A-. Remove jumper wires for Class A
wiring.
- T-tapping is not allowed for Class A wiring.
Figure 2-4 IDNet Wiring
200 DEVICE
12 - 18 AWG
250mA @ 35V
4008
OR
UNIMMODE AE
OR
2008
CLS B
CLS A
TB1 TB2
1 2 3 4 5 6 7 8 1 2 3 4 5 1 2 3 4 5 6 7 8
TB3
MAIN SYSTEM BOARD - ADDRESSABLE (MSB - A)
S
H
I
E
L
D
Note: If wiring
Class B, do not
return wiring to A+/
A- terminals.
See “Ferrite
Bead” on next
page for informa-
tion on looping TB
2-1 and TB 2-2
through Ferrite
bead.
Compatible Detectors:
Photo Detector 4098-9714
Photo Detector (Canadian) 4098-9714C
Photo Detector w/Heat 4098-9754
Photo Detector w/Heat (Canadian) 4098-9754C
Heat Detector 4098-9733
Heat Detector (Canadian) 4098-9733C
2 Wire Duct Detector w/o Relay 4098-9755
2 Wire Duct Detector w/o Relay (Canadian) 4098-9755C
4 Wire Duct Detector w/Relay 4098-9756
4 Wire Duct Detector w/Relay (Canadian) 4098-9756C
Compatible Bases:
Detector Base w/o Remote Led Connection 4098-9792
Detector Base w/o Remote Led Connection, Canadian,
4098-9792C
Detector Base w/Remote Led Connection 4098-9789
Detector Base w/Remote Led Connection, Canadian 4098-
9789C
Detector Base w/Relay Drive 4098-9791
Detector Base w/Relay Drive, Canadian 4098-9791C
Isolator Base 4098-9793
Isolator Base, Canadian 4098-9793C
Sounder Base 4098-9794
Sounder Base, Canadian 4098-9794C
Multi Detector Sounder Base 4098-9795
Multi Detector Sounder Base, Canadian 4098-9795CA
Multi Detector Base w/LED 4098-9796
Multi Detector Base w/LED, Canadian 4098-9796CA
Compatible ZAMs/IAMs
4090-9106 Class A ZAM
4090-9101 Class B ZAM
4090-9001 Supervised IAM
4090-9002 Relay IAM
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