User guide

Specifications

Rev 1.0 May.10 11

Interface Port Pin-Outs

Serial Port

Figure 2-1: Serial Port Diagram: Female DB-9 DCE (not to scale)

The relay contacts are rated for 30 Vdc max and 500mA max

Power Connector

Figure 2-2: Power Connector (not to scale)

Warning:

Explosion Hazard - Do not disconnect equipment unless power has been

switched off or the area is known to be non-hazardous.

< - > GND (Ground)

< - DTR Data Terminal Ready)

< - Rx (Receive)

- > Tx (Transmit)

- > DCD (Data Carrier Detect)

Unused

CTS (Clear to Send)

< -

RTS (Request to Send) - >

DSR (Data to Send) < -

Digital

Output

Ground (black) Power (red)

Input