Interlogix DVR 60 User Manual - Manual (Page 20)

1BChapter 2: Installation
14 TruVision DVR 60 User Manual
Use an RS-485/KTD-83 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 60s can be connected to each output. See Figure 5 below.
Figure 5: Expanding the system with an RS-485 signal distributor
1. Keypad
2. I/O box 3. RS-485/KTD-83 distributor
4. See section “RS-485 ports” below
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.
RS-485 ports
There are two RS-485 ports on the rear panel of the TVR 60. See Figure 6 on
page 15 for the serial pin outs.
• Dome RS-485:
Term G: Termination of RS-485 bus
G: Ground
A and B: Connect pan, tilt, zoom control of PTZ dome cameras. A = +, B = -
C and D: Not used
• Keyb: Connect the keypad.