12
Figure 4: VSI-Pro Max Connections
Table 3 : Pin-Out of the DB-9 Female Connector on the VSI-Pro RS-422 / RS-485
1 Alarm Out 1 Open Collector Transisitor
2 No Function No Function
3 TXD RS-232 From VSI-Pro Max (Option)
4 RS-485 (+) A Data From or To VSI-Pro Max
5 Ground
6 RS-485 (-) B Data From or To VSI-Pro Max
7 RTS ( Alarm In ) To VSI-Pro Max
8 CTS From VSI-Pro Max
9 Alarm Out 2 Open Collector Transistor
PIN # FUNCTION DIRECTION
CONNECTIONS
Note: When the RS-485 port is set for Bi-Directional RS-485 the TXD port has no function. When the RS-
485 port is set for recieve data only then the TXD port can be used for an RS-232 output.
VSI-Pro Max POS / Cash Register Interface
VSI-Pro Max
CASH REGISTER
MONITOR
RS-232 or
RS-485
Direct or
ECR
Interface
RG-59U
RG-59U
WALL TRANSFORMER
9-12VDC 300mA
CAMERA
To Earth Ground for
Surge Suppression
Networking to additional
VSI-Pro Max, Regcom,
Networker, Vnetworker or
PC Software Application