Pins Not Used; Connecting To Lite Blue - Vanderbilt lite blue Manual

Chapter 2 VBB-RI

W4 - Determines the configuration of the first pin (TXBW0) at P3.
Default: Jumper on pins 5&6

W5 - Determines the configuration of the third pin (RXA) at P4.
Default: Jumper on pins 3&4

W6 - P4 Pin2/Pin3 RS485 Communication Line Terminator.

Default: No Jumper

W7 - Determines the configuration of the second pin (TXB) at P4.
Default: Jumper on pins 1&2

Pins Not Used

W9 - BKDG: No jumper required for normal operation.

Connecting to lite blue

Data communication between the lite blue controller and a VBB-RI reader interface is via RS-485 protocol. Either
RS-485 channel on the lite blue controller can be used to communicate with P4 on a VBB-RI. The below
example is using RS485-1 on the lite blue controller and P4 on the VBB-RI.
Data Communication between lite blue and VBB-RI
lite blue
RS-485-1 TR+
RS-485-1 TR-
VLBIM06/15/15 v4.1.0
VBB-RI
Pin 3 - RXA (Data A)
Pin 2 - TXB (Data B)
Pin 4 - PWR (Power)
Pin 1 - GND (Ground)
Power Supply
+ (Power)
- (Ground)
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