AT&T 3B2/300 Technical Reference Manual page 762

Appendix: CONNECTOR AND CABLING I N F O R M A T I O N - - - - - - - - - - - - - - - -
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INTEL
80186
CPU
SERIAL PORT
(CHANNELS A AND B)
8274
DUAL
CHANNEL
COMMUNICATIONS
CIRCUIT
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Figure B-28: CM195T ISC Card Layout
B-180 TECHNICAL REFERENCE MANUAL