Rs232 Port; I/O Port - GE Security VSR-300 User Manual

8 VSR
User Manual
If an additional device is connected to the monitor's looping output, set the termination of the additional device
as 75-Ohm, and set the termination of the monitor as Hi-Z (High Impedance).
Cable
Connectors
Auto terminating
Passive looping

RS232 Port

The RS232 port is provided for external control of the VSR from a PC via the PC's serial port. This requires
the use of a RJ45 to DB9-F null modem cable (or DB25-F depending on the type of RS232 port on the PC).
Table 4. RJ45 RS232 connector pinouts
Pin
1
2
3
4
5
6
7
8

I/O port

The back panel of the VSR is equipped with an accessories I/O port (DB9-M style connector). Connect the
accessories PCB, supplied with the unit, to the I/O port. Wire all accessories to the accessories PCB.
Note: Do not attempt to wire accessories directly to the I/O connector.
If the accessories PCB is lost or missing, contact GE Security technical support at 888-437-3287 for a
replacement part (P/N 0900-0127).
Note: This port is not used for serial communications.
75-Ohm coaxial
BNC
Yes
Yes
Use
Ground
Reserved
Not connected
RxD
TxD
Not connected
Ground
Reserved