Product information guide

EQUITY Ill+ (10 MHz)
Connector Pin Assignments
Parallel Port Connector
13
25
PIN NO.
SIGNAL NAME
DIRECTION DESCRIPTWN
1 - STROBE
2 DATA6
3 DATA1
4 DATA2
5 DATA3
6 DATA4
7 DATA5
6 DATA6
9 DATA7
10 - ACK
11
+ BUSY
12
+PE
13
+ SLCT
14 - AUTOFf
15 -ERROR
16 - INIT
17 - SLCTIN
16 GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
0
0
0
0
0
0
0
0
0
I
I
I
I
I
I
I
I
Printer Data Bit 0
Printer Data Bii 1
Printer Data Bit 2
Printer Data Bii 3
Printer Data Btt 4
Printer Data Btt 5
Printer Data Bk 6
Printer Data Bit 7
Acknowledge
Printer Busy
End of Paper
Printer Select
Auto Feed
Printer Error
Printer lnltiallze
Printer Select In
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Serial Port Connector
12345
1%)
6 7 8 9
PIN NO.
SIGNAL NAME
DlRECTloN
DESCRlPTKlN
1
CRDET I
Data Carrier Detect
2
RXDT I Receive Data
3 TXDT 0 Transmit Data
4 DTR 0 Data Terminal Ready
5
SG Signal Ground
6 DSR Data Set Ready
7
RTS
‘0
Request to Send
a
CTS I
Clear to Send
9 RI I Ring Indicator
Keyboard Connector
Pin Number
1
2
3
4
5
Signal Name
Clock
Data
Not Connected
Ground
+5 VDC
Ground
EQIII + - 6
12/12/88
Equity Series Computers
1 Jumper Settings 1
CN6
Main Circuit Board
I
1
I
Jumper
I
123456
A
* 2 wait cycles for EPROM (note 1)
B
1 wait cycle for EPROM (note 1)
A A
* 4 wait cycles (note 2)
B A
3 wait cycles (note 2)
A B
2 wait cycles (note 2)
B B
1 wait cycle (note 2)
* Factory Settings
Notes:
1.
2.
* Set CPU clock (6/8/10 MHz)
Prohibited
Prohibited
Use CPU clock for NPX clock
l Use 8 MHz clock for NPX clock
Prohibited
Selectable wait states only available at 10 MHz.
Wait cycles for external 16-bit devices. These
selectable wait cycles are available at 10 MHz only.