User's Manual

Turbo PMAC2 VME Ultralite
Connector Pinouts 13
CONNECTOR PINOUTS
J2 (JTHW) Multiplexer Port Connector
Front View
Pin # Symbol Function Description Notes
1 GND Common PMAC Common
2 GND Common PMAC Common
3 DAT0 Input Data-0 Input Data input from MUX port accessories
4 SEL0 Output Select-0 Output Address data output for MUX port
accessories
5 DAT1 Input Data -1 Input Data input from MUX port accessories
6 SEL1 Output Select -1 Output Address data output for MUX port
accessories
7 DAT2 Input Data -2 Input Data input from MUX port accessories
8 SEL2 Output Select -2 Output Address data output for MUX port
accessories
9 DAT3 Input Data -3 Input Data input from MUX port accessories
10 SEL3 Output Select -3 Output Address data output for MUX port
accessories
11 DAT4 Input Data -4 Input Data input from MUX port accessories
12 SEL4 Output Select -4 Output Address data output for MUX port
accessories
13 DAT5 Input Data -5 Input Data input from MUX port accessories
14 SEL5 Output Select -5 Output Address data output for MUX port
accessories
15 DAT6 Input Data -6 Input Data input from MUX port accessories
16 SEL6 Output Select -6 Output Address data output for MUX port
accessories
17 DAT7 Input Data -7 Input Data input from MUX port accessories
18 SEL7 Output Select -7 Output Address data output for MUX port
accessories
19 N.C. N.C. No Connection
20 GND Common PMAC Common
21 BRLD/ Output Buffer Request
Low is Buffer Req.
22 GND Common PMAC Common
23 IPLD/ Output In Position
Low is In Position
24 GND Common PMAC Common
25 +5V Output +5VDC Supply
Power supply out
26 INIT/ Input PMAC Reset
Low is Reset
The JTHW multiplexer port connector provides eight inputs and eight outputs at TTL levels; typically these
are used to create multiplexed I/O with accessory boards such as Acc-18 (Thumbwheel) and Acc-34 (Discrete
I/O). The port I/O may also be used directly, as non-multiplexed I/O.