GTCO 2500 Series - Users Guide 2/3 User Manual
Page 23
2500 Series 23
3. Reinstall the cover assembly. The indicator pin should now be visible in the 240V
position.
NOTE: For protection against the risk of fire or electric shock hazard, always replace
fuses with the same type and rating of fuse.
Communication Interface
The 2500 tablet is designed for asynchronous serial RS-232C transmission using RS-
232C/CCITT V.24 signals. This version supports an eight-wire data and handshaking subset
of RS-232C. The tablet is configured to function as Data Terminal Equipment (DTE). DTE
assumes transmit on pin 2 and receive on pin 3. The tablet can also emulate a DCE device,
which transmits on pin 3 and receives on pin 2. If the host is configured as DTE and uses
handshake signals, a null modem should be used between the tablet and host.
PIN NUMBER
ASSIGNMENT
1
2(3)
3(2)
4
Chassis Ground
Transmitted Data
Received Data
Request to Send
Output