Simplex 4100-0136 Installation Instructions Manual page 21

Field Wiring,
Continued
Style B (Class B)
with Coded
Station/Contact
Wiring to Decoder
Before wiring, review the following guidelines:
•
Supervised circuit: 28.5 VDC, 8.6 mA.
•
Maximum current: 75 mA (shorted) at 28.5 VDC.
•
Do not connect any other devices to loops. Connect coded devices or contacts only, to
decoder loops.
•
800 Ohms maximum resistance per loop, including through any coder contact.
Use Figure 12 below to connect Style B coded station/contact wiring.
4081-9002 3.3 K, 1 W
END-OF-LINE RESISTOR
HARNESS (733-893)
Figure 12. Decoder Module Style B (Class B) with Coded Station/Contact
4081-9002 3.3 K, 1 W END-OF-LINE
RESISTOR HARNESS (733-893)
CODED (DRY) N.O. CONTACTS
Wiring to Decoder
21