Figure 3-2 Printer Rear Panel - Microcom 438TM Operator's Manual

Direct thermal printer
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Getting Started
USB Port
Ethernet Port
RS232 Port
Power
Connection
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 hardware flow control CTS/RTS handshaking.
3.3.1
RS-232 Serial Cables
The printer uses a standard through serial cable, typically referred to as a modem cable,
which may be purchased through Microcom Corporation or a local computer supply
company. A NULL-modem cable is not required because the printer is configured as DCE.
3-2
Figure 3-2
Printer Rear Panel
438TM Operator's Manual - 880049-0113
Chapter 3
External Media
Entry Slot
Optional Cash
Drawer Port
AUX Port

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