3.1 Rs-232 Serial Input; Table 3 : Pin-Out Of The Db-9 Female Connector On The Vsi-Pro Rs-422 / Rs-485 - AVE VSI-PRO Operation Manual

Table 1: Pin-Out of the DB-9 Female Connector on the VSI-Pro RS-232

3.1 RS-232 SERIAL INPUT

The VSI-Pro accepts serial data via the DB-9 female connector located on the rear of VSI-Pro. This connector is
similar to "AT" type computer RS232 serial ports and the pin out is identical. Table 1 shows the standard pin out for
VSI-Pro RS-232 female connector. On the other hand Table 2 compares the VSI-Pro RS-232 with standard "AT"
computer's RS-232 connector.
VSI-Pro VIDEO SERIAL INTERFACE
PIN #
FUNCTION
1 Alarm Out 1
2 Receive Data
3 Transmit Data
4 DTR
5 Ground
6 DSR
7 RTS ( Alarm In )
8 CTS
9 Alarm Out 2
PIN # SIGNAL NAME ( RS232 )
1 CD (Carrier Detect )
2 RxD ( Recieve Data )
3 TxD ( Transmit Data )
4 DTR ( Data Terminal Ready )
5 SG ( Signal Control )
6 DSR ( Data Set Ready )
Aways True
7 RTS ( Request to Send )
)
8 CTS ( Clear to Send )
)
Table 2: RS-232 DB-9 Pin-Out vs VSI-Pro DB-9 Pin-Out
9 RI ( Ring Indicator )
DIRECTION
Open Collector Transisitor
To VSI-Pro
From VSI-Pro
From VSI-Pro (Remain High)
From VSI-Pro (Stay High)
To VSI-Pro
From VSI-Pro
Open Collector Transistor
VSI-Pro
Alarm Out 1
RxD
TxD
Aways True
GND
CTS ( Option
RTS ( Option
Alarm Out 2
11
CONNECTIONS