Interlogix DVR 41 User Manual - Manual (Page 17)

1BChapter 2: Installation
TruVision DVR 41 User Manual 11
Figure 4: Star wiring with RS-485 signal distributor
Correct:
1. Keypad
2. I/O box 3. RS-485 distributor
4. See section “RS-485 ports” on page 12
Incorrect:
1. Keypad
2. I/O box 3. See section “RS-485 ports” on page 12
Use an RS-485 signal distributor to increase the maximum number of devices on
the bus as well as the total range. Each distributor output provides another RS-
485 bus, extending the output an additional 1200 m. Up to 31 TVR 41s can be
connected to each output. See Figure 5 on page 12.