User manual

C: Pinouts
The following diagrams show the pin configurations for each of the three connectors on the Cohu
7100 camera. Refer to this section for the appropriate Ethernet pin configuration, if you plan to
attach a security sensor to the camera, or if you plan to connect an external modem to the camera.
The diagrams below appear as they would if you are looking at the front of the camera.
C.1 Ethernet Connector
The camera uses a standard RJ45 Ethernet connector. The pin connections are shown below.
1 – TX (+)
2 – TX (-)
3 – RX (+)
4 – RX (-)
C.2 Serial Connector
The DB9 Serial port is used to connect a modem or console terminal to the camera. Refer to the
Modems Chapter of the Reference Manual for more information about attaching a modem.
1 - DCD
2 - RX
3 - TX
4 - DTR
5 - GND
6 - DSR
7 - RTS
8 - CTS
9 - RING
C.3 Relay I/O Connector The screw terminal supports a connection to a security sensor. By adding an
ordinary sensor device to an the camera, you can trigger the camera to operate when a sensor is
activated.
1 - Relay Power Output
2 - Ground
3 - Sensor In (-)
4 - Sensor In (+)
5 - Relay Out (-)
6 - Relay Out (+)
The Relay Power Output is normally 12V DC. However, it will be lower than 12V DC if the
input voltage to the camera is less than 13V DC. Externally connected equipment is allowed to
pull at most 50mA off the relay power output.
C.4 Power Connector
The camera receives its power from a 3-terminal screw terminal.
1 V in –
2 Gnd
3 V in +
54 of 60
1 2 3 4 5
6 7 8 9
87654321
12V
Out
+ -
input
+ -
output
+ -
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1
2 3