PINOUT OF INTERFACE CONNECTOR
The following describes the pinout of the interface connector (signals which are low when active are overlined).
Parallel interface
Pin Name
1 STROB”E-
2DATAO
3DATA1
4DATA2
5DATA3
6DATA4
7DATA5
8DATA6
9DATA7
10 AC”K
11 BUSY
12PAPER
13SELECT
14, 15 | N/C |
16SIGNAL GND
17CHASSIS
18+5V
31RESET
32ERROR
33EXT GND
34,35 N/C
36 SELECT IN
Function
Goes from high to low (for> 0.5 ps) when active
High when active
High when active
High when active
High when active
High when active
High when active
High when active
High when active
5 VSlow pulse acknowledges receipt of data Low when printer ready to receive data High when paper out. Can be disabled with EDS setting
High when printer is
Signal ground
Chassis ground (isolated from signal ground) +5V DC output from printer
Twisted pair ground return
When this input signal is low, printer is reset Outputs low when printer cannot continue, due to an error
External ground
Always high
99
