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9020 Peripherals 7-13
HP 27130AlB Asynchronous 8-Channel Multiplex
Features
• CCITT V.28 and EIA RS-232C compatible.
• Supports simplex, echoplex, or full-duplex mode (asynchronous transmission only).
• Selection of data transmission attributes can be performed independently on each channel.
• Local intelligence reduces time consumed by the CPU during 1/0 transactions by offering edit
functions, special character recognition, and handshake protocol control.
• Parity, overrun, and framing errors are sensed locally to detect transmission errors.
• X-ON/X-OFF (both directions) and ENQ/ACK (one direction, host sending ENQ) handshaking
27130AlII
AS!
-
or
8120·4076)
(Included)
5{)-Pm
Connl'ctPT
Female [)B255
R5-232C Connection P .....
(28658·60005 or 21828·60001)
Peripheral Cable
~
~
Included W'2601
40242M (5M)
25·Pin
Peripheral
2647F
2622A. 2623A
26248 (Port 1).
2626A (Port 1).
2627A
26248 (Port 2)
2626A (Port 2)
2601 A
i1TMl
3
R
J.-.1h
~
2392A OPT.
301
~
25 PIN
2392A
ItA....-
13242G (5M)
£1h
~-----<===~
25 PIN 26118A
HP 27130A/B Asynchronous 8-Channel Multiplex Cabling
09020·90035,
rev:
7/85
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Troubleshooting
