Delta Tau PMAC2A-PC/104 - Manual (Page 67)

PMAC2A PC104 Hardware Reference Manual
Acc-2P Connector Pinouts 61
ACC-2P CONNECTOR PINOUTS
TB1 (JPWR): Power Supply
(4-Pin Terminal Block)
Top View
Pin# Symbol Function Description Notes
1 GND Common Reference Voltage
2 +5V Input Positive Supply Voltage Supplies all PMAC digital circuits
3 +12V Input Positive Supply Voltage Ref to digital GND
4 -12V Input Negative Supply Voltage Ref TO Digital GND
This terminal block can be used to provide the input for the power supply for the circuits on the PMAC board
when it is not in a bus configuration. When the PMAC is in a bus configuration, these supplies automatically
come through the bus connector from the bus power supply; in this case, this terminal block should not be used.
J1 (USB) Universal Serial Bus Port (Optional)
Pin # Symbol Function
1 VCC N.C.
2 D- DATA-
3 D+ DATA+
4 GND GND
5 SHELL SHIELD
6 SHELL SHIELD
This connector is to be used in conjunction with USB A-B cable, which can be purchased from any local
computer store and it is provided when Acc-2P Option 1A is ordered. The A connector is connected to a PC or
Hub device; the B connector plugs into this port.