TallyGenicom 2248, User Manual

Page: 191 / 240

D-3
User's Manual
INTERFACE INFORMATION
Interface
Pin Return Signal Direc- Description
No. Pin No. name tion
13 – Select Output This signal is high when the
(SLCT) printer is online.
14 – Auto Feed XT Input Not used
15 – – – No connection
16 – Signal Ground – Logic ground level (0 V)
17 – Frame Ground – Printer chassis ground line. FG
and SG are connected.
18 – +5V Output +5 V source (up to 300 mA)
19– – Signal Ground – Twisted pair return lines
30
31 – Input Prime Input If this signal is low for more
(INPRM) than 50 µs, the printer is reset to
the initial condition and is placed
online.
32 – Fault Output This signal is low when the
printer is offline, paper is out, or
when there is a printer error.
33 – Signal Ground – Logic ground level (0 V)
34 – – – No connection
35 – +5 VR Output Pulled up to +5 V through a
3.3 ký resistor
36 – SLCT-IN Input Not used