Astronics OMNIBUS II NI PXIe, User Manual

Page: 53 / 67

CONNECTOR PINOUTS
7-6 OmniBus II NI PXIe User Manual
*NOTE: The IRIG pins on cores A and B share common resources. This means
that only one can be used at a time. There are additional IRIG configurations that
are pin and core specific. Please
refer to Table 4.6 , Table 4.8 , and Table 4.10 for
details .
7.4.2 MIL-STD-1553 Cable Assemblies
Ballard offers four standard cable assemblies for MIL-STD-1553 (see Table 7.5
below). The standard length is three feet.
Cable Assy. No. No. of Ch. CH0 CH1 -Sub
16037 2
  
16038 2
 
–
16039 1

–

16041 1

– –
Table 7.5—MIL-STD-1553 Cable Assembly Configurations
These four cables are available for single or dual channel modules and with or
without a D-sub connector. All of them provide a twinax cable from the LFH
connector to a PL-75 for each of the transformer coupled MIL-STD-1553 buses.
All channels are dual redundant, so there are either two or four twinax cables with
PL-75s on each assembly. Table 7.6 shows the wiring details of the twinax cables.
Cable Name Wire Name From LFH Pin To PL-75 LFH Name
CH0 CH0AX 3 Center BUS0P
BUS A CH0AXR 2 Outer BUS0N
CH0 CH0BX 26 Center BUS3P
BUS B CH0BXR 27 Outer BUS3N
CH1 CH1AX 33 Center BUS8P
BUS A CH1AXR 32 Outer BUS8N
CH1 CH1BX 56 Center BUS11P
BUS B CH1BXR 57 Outer BUS11N
Braids connected between the LFH shell and the PL-75 shell
Table 7.6—Twinax Wiring on MIL-STD-1553 Cable Assemblies