Printronix MVP Series User Manual page 172

Table 8–1. Centronics Interface Signals and Pin Assignments Input Signals
Input Signals
DATA STROBE A low active true pulse (at least 100 ns duration) from the host com-
puter to clock data into the printer. Data lines must stabilize for at
least 50 ns before DATA STROBE is sent.
DATA LINE 1 Eight high active lines from the host computer forming a character
DATA LINE 2
byte or a Control Code byte.
DATA LINE 3
DATA LINE 4
DATA LINE 5
DATA LINE 6
DATA LINE 7
DATA LINE 8
Refer to Configuration Option 60, Section 5.6, for DATA LINE 8
control.
PAPER Enables EVFU control (when clocked into printer by DATA
INSTRUCTION
STROBE). Effective only when Configuration Option 60 is set 60.2
and 61 is set to 61.1. DATA STROBE timing is the same as for data
lines.
Table 8–2. Centronics Interface Signals and Pin Assignments Output Signals
Output Signal
ACKNLG Low active pulse from the printer to indicate the printer is ready for the
next data transfer.
SLCT A high active level (when PE level is low) from the printer to indicate the
printer is ready to receive data and the RDY switch has been activated.
PE A high active level from the printer to indicate a check (CHK) condition.
BUSY A high active level from the printer to indicate a check (CHK) condition.
5 VOLT Supplies +5V (at one Ampere) output for powering a Printronix Test
TEST
Exerciser (Exerciser not required for the L150)>
CHASSIS Connections for a cable shield.
GROUND
SPARE Not Used.
8–4
Description
Description
Connector
PIN RETURN
1 19
2 20
3 21
4 22
5 23
6 24
7 25
8 26
9 27
15 14
Connector
PIN RETURN
10 28
13 N/A
32
12 N/A
11 29
18 N/A
17 N/A
30
31
32
34
34
36
Interfaces