Sony YS-SX509P Manual De Instrucciones página 15

Cautions
• Do not connect to a phone line.
• Only up to two RS-485 control ports can be used.
• Do not use all of the RS-485 control ports.
2CONTROL terminals
Pin Signal
C Ground
A RS-485 terminal *
B RS-485 terminal *
C Common
AL Alarm output (DC 5V)
C Common
R1 Remote input 1
R2 Remote input 2
C Common
SW Switching input (DC 5V)
C Common
* Used for connection with a twisted-pair cable.
Make the connections to pins A, B, C (earth) of the
CONTROL terminal using a twisted-pair cable (not
supplied). Then, connect signal A to A, and signal B to
B.
Push in to insert cable
Twisted-pair cable
3RS-232C connectors
9-pin connector layout
Pin No. Signal
Connect a 9-pin D-SUB cable (not supplied) from the
RS-232C terminal on the rear panel to the computer
serial connector.
4SENSOR ALARM OUT terminals
When the unit internal video sensor sends a trigger, it
will be output at the SENSOR ALARM OUT
terminals. By connecting indicator lamps switching
circuits to theses connectors (Fig. 1), an indication can
be generated when the video sensors send a trigger.
To B signal
For example, the video sensor alarm indicator lamps
To A signal
could be laid out on a factory floor plan to give an
Ground
accurate indication of trigger location. The terminals
are normally open (NO). A trigger at the video sensor
for one of the cameras will switch the signal to LOW.
Function
1 – –
2 RXD Data reception
3 TXD Data transmission Multiplexer t
4 – –
5 GND Ground
6 – –
7 RTS Request to send
8 – –
9 – –
Fig. 1
1 K
Rating values for each terminal
(at 25 ˚C)
Maximum current
Maximum voltage : 25 V
Maximum power
Signal direction
–
Computer t
Multiplexer
Computer
–
–
–
Multiplexer t
Computer
–
–
: 25 mA
: 40 mW
15
(GB)