60 TLP 2824-Z User Guide 980533-001 A
Interfaces
Serial (RS-232) Connector
Serial (RS-232) Connector
The maximum current available through the serial and/or parallel port is not to exceed a total
of 0.75 Amps.
When XON/XOFF handshaking is selected, data flow is controlled by the ASCII contro l codes
DC1 (XON) and DC3 (XOFF). The DTR control lead will have no effect.
Interconnecting to DTE Devices —The printer is configured as data terminal equipment
(DTE). To connect the printer to other DTE devices (such as the serial port of a personal
computer), use an RS-232 null modem (crossover) cable.
Interconnecting to DCE Devices —When the printer is connected via its RS-232 interface to
data communication equipment (DCE) such as a modem, a STANDARD RS-232 (straight-
through) interface cable must be used.
Pin No. Description
1Not used
2RXD (receive data) input to the printer
3TXD (transmit data) output from printer
4DTR (data terminal ready) output from the printer -- controls when the
host may send data
5Chassis ground
6DSR (data set ready) input to the printer
7RTS (request to send) output from the printer -- always in the ACTIVE
condition when the printer is turned on
8CTS (clear to send) input to the printer
9+5 V @ 0.75 A fused