Rs-232 Serial Interface Signals; Ieee 1284 Parallel Interface (Optional); Parameters; Parallel Interface Printer Status (/Fault Pin And Pe Pin) - Microcom 814M Operator's Manual

6.1.2 RS-232 Serial Interface Signals

Printer serial port signals and status are described in the following table:

6.2 IEEE 1284 Parallel Interface (optional)

6.2.1 Parameters

−
Data transmission:
−
Synchronization mode: nStrobe signal is provided by exterior
−
Handshake mode:
−
Signal voltage level:
−
Connector:

6.2.2 Parallel Interface Printer Status (/FAULT pin and PE pin)

Signal
PIN NO
name
1 NO
2 RXD
3 TXD
4 DTR
5 SG
6 DSR
7 RTS
8 CTS
9 FG
Table 6-1 Serial Interface Signals
8 bits Parallel
Busy signal
TTL compatible
36 pin – Centronics
Status
Normal
Paper end
Print head Overheated
Other errors
Table 6-2 /FAULT Pin and PE Explanation
Signal
function
direction
input Data input end
output Data output end
output Data terminal is ready
— Signal ground
input Data device is ready
output Request to send
input Allow to send
— Frame Ground
/FAULT
PE
low
high
high
low
low
low
low
low
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