Compaq 8000 Technical Reference Guide: HP Compaq 8000 Elite Series Business De - Page 56

Parallel Interface Connector, o

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Input/Output Interfaces 5.4.4 Parallel Interface Connector Figure 5-4 and Table 5-3 show the connector and pinout of the parallel connector provided on the optional parallel bracket/cable assembly. Note that some signals are redefined depending on the port's operational mode. e wq-98 7 6 5 4 321 g fdsapo iuytr Figure 5-4. DB-25 Parallel Interface Connector (female, as viewed from rear of chassis) Table 5-3. DB-25 Parallel Connector Pinout Pin Signal Function 1 STB- Strobe / Write [1] Pin Signal Function 14 LF- Line Feed [2] 2 D0 Data 0 15 ERR- Error [3] 3 D1 4 D2 Data 1 Data 2 16 INIT- Initialize Paper [4] 17 SLCTIN- Select In / Address. Strobe [1] 5 D3 Data 3 18 GND Ground 6 D4 7 D5 Data 4 Data 5 19 GND 20 GND Ground Ground 8 D6 Data 6 21 GND Ground 9 D7 Data 7 22 GND Ground 10 ACK- Acknowledge / Interrupt [1] 23 GND Ground 11 BSY 12 PE Busy / Wait [1] Paper End / User defined [1] 24 GND 25 GND Ground Ground 13 SLCT Select / User defined [1] -- -- -- NOTES: [1] Standard and ECP mode function / EPP mode function [2] EPP mode function: Data Strobe ECP modes: Auto Feed or Host Acknowledge [3] EPP mode: user defined ECP modes:Fault or Peripheral Req. [4] EPP mode: Reset ECP modes: Initialize or Reverse Req. 5-6 www.hp.com Technical Reference Guide

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5-6
www.hp.com
Technical Reference Guide
Input/Output Interfaces
5.4.4 Parallel Interface Connector
Figure 5-4 and Table 5-3 show the connector and pinout of the parallel connector provided on the
optional parallel bracket/cable assembly. Note that some signals are redefined depending on the
port's operational mode.
Figure 5-4.
DB-25 Parallel Interface Connector (female, as viewed from rear of chassis)
NOTES:
[1] Standard and ECP mode function / EPP mode function
[2]
EPP mode function: Data Strobe
ECP modes: Auto Feed or Host Acknowledge
[3]
EPP mode: user defined
ECP modes:Fault or Peripheral Req.
[4]
EPP mode: Reset
ECP modes: Initialize or Reverse Req.
Table 5-3.
DB-25 Parallel Connector Pinout
Pin
Signal
Function
Pin
Signal
Function
1
STB-
Strobe / Write [1]
14
LF-
Line Feed
[2]
2
D0
Data 0
15
ERR-
Error [3]
3
D1
Data 1
16
INIT-
Initialize Paper [4]
4
D2
Data 2
17
SLCTIN-
Select In / Address. Strobe [1]
5
D3
Data 3
18
GND
Ground
6
D4
Data 4
19
GND
Ground
7
D5
Data 5
20
GND
Ground
8
D6
Data 6
21
GND
Ground
9
D7
Data 7
22
GND
Ground
10
ACK-
Acknowledge / Interrupt [1]
23
GND
Ground
11
BSY
Busy / Wait [1]
24
GND
Ground
12
PE
Paper End / User defined [1]
25
GND
Ground
13
SLCT
Select / User defined [1]
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