Interlogix NVR 50 User Manual - Manual (Page 13)

1BChapter 2: Installation
TruVision NVR 50 User Manual 7
Incorrect:
1. Keypad
2. I/O box 3. See section “RS-485 ports” on page 8
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 NVRs can be
connected to each output. See Figure 4 below.
Figure 4: Expanding the system with an RS-485 signal distributor
1. Keypad
2. I/O box 3. RS-485 distributor
4. See section “RS-485 ports” on page 8
Caution : Most signal distributors are unidirectional. This means that the signal
only flows from the input towards the outputs. Consequently it is not possible to
connect several keypads.
See section “RS-485 ports” below to configure the RS-485 port communication
settings.