Microcom 428T - Manual (Page 18)

Getting Started Chapter 3
3-2 428T Operator’s Manual - 880037-0141
Figure 3-2 Printer Rear Panel
3.2 Printer Power
The printer has a universal auto-sensing internal power supply that operates in the 100-240
VAC; 50-60 Hertz range. The three-prong female end of the power cord plugs into the
mating connector located on the back of the printer.
3.3 RS232 Serial Communication Interface
The printer provides a 9-pin female D-Sub connector, on the rear panel, for RS-232D serial
communication. The printer is configured as DCE (Data Circuit-terminating Equipment) so a
NULL modem cable is not necessary. A serial data cable is required to use serial
communications, refer to Table 3-1 below for correct cable configurations.
The factory settings, unless otherwise requested, are set at 115200 baud, 8 data bits, 1 stop
bit and no parity with hardware handshaking enabled. The baud rate is user selectable from
110 to 115,200 and uses software XON/XOFF flow control and/or hardware CTS/RTS
handshaking.
If XON/XOFF handshaking is used, the only signals that the printer requires are the RXD,
TXD, and GND signals. If the hardware handshaking is used, then the CTS and RTS signals
are required. The other signals are offered in the event that the host computer would
require them.
Power
Connection
USB Port
AUX Port
Optional Cash
Drawer Port
Optional Parallel
Port
RS232 Port
External Media
Entry Slot