- Zebrafish User Guide TLP 2824-Z

60 TLP 2824-Z User Guide 980533-001 A
Interfaces
Serial (RS-232) Connector
Serial (RS-232) Connector
The maximum current available th rough the serial and/or parallel port is not to exceed a total
of 0.75 A mps.
When XON/XOFF handshak ing is sele cted, data flow is co ntrolled b y the ASCII control co des
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 prin ter is connected via its RS-232 interface to
data communication equi pment (DCE) such as a mod em , a STANDARD RS-232 (strai ght-
through) interface cable must be used.
Pin No. Description
1 Not used
2 RXD (receive data) input to the printe r
3 TXD (transmit data) output from printer
4 DTR (data terminal ready) output from the printer -- controls when the
host may send data
5 Chassis ground
6 DSR (data set ready) input to the printer
7 RTS (request to send) output from the printer -- always in the ACTIVE
condition when the printer is tu rned on
8 CTS (clear to send) input to th e printer
9 +5 V @ 0.75 A fused