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IBM

IBM 75H8769 SDLC Multiprotocol Adapter ISA Card RS-232 Serial Communications

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SKU:
13994
MPN:
75H8769
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
2.00 LBS
Shipping:
Calculated at Checkout
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter Card – top component side view showing full PCB population
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter Card – angled top view of component side and DB25 bracket connector
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter – rear side view showing DB25 female connector on bracket and ISA edge connector
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter – side-angle rear view showing bracket with DB25 port and ISA gold-finger edge
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter – angled bottom-side view showing solder side, FCC Class B and IBM labels
  • IBM 75H8769 SDLC Multiprotocol ISA Adapter – close angled view of solder side showing IBM part label and CE/FCC markings
$45.00
Was: $90.00
Current Stock: 4

Sold Out

Description

IBM 75H8769 SDLC Multiprotocol Adapter ISA Card RS-232 Serial Communications

This is an ISA expansion card designed for synchronous serial communications using the SDLC protocol. It provides RS-232 serial interface capabilities for IBM PC/AT and compatible systems.

Specifications & What's Included

  • Model: IBM 75H8769
  • Type: SDLC Multiprotocol ISA Adapter Card
  • Bus Interface: ISA (Industry Standard Architecture)
  • Protocol: SDLC (Synchronous Data Link Control)
  • Connector: DB25 (25-pin D-sub)
  • Compatible: IBM PC/AT and ISA-bus systems
  • Manufactured in United States
  • Card only; no accessories included

Applications

This adapter was used to add synchronous serial communications capability to legacy IBM computers and compatibles running mainframe connectivity or network protocols. SDLC adapters were commonly deployed in telecommunications and data communications environments where synchronous serial links were required for point-to-point or multipoint network connections. The card connects to host systems via ISA slots found in computers from the 1980s and 1990s.

Condition: For Parts or Not Working
This IBM 75H8769 SDLC Multiprotocol Adapter ISA card has not been tested and is being sold as-is. The card appears visually intact with no obvious physical damage noted, but functionality has not been verified. It is listed for parts or repair purposes only, with no guarantee of operation. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
IBM
Model:
75H8769
MPN:
75H8769
Type:
SDLC Multiprotocol ISA Adapter Card
SKU:
13994
Bus Interface:
ISA (Industry Standard Architecture)
Protocol:
SDLC (Synchronous Data Link Control)
Connector Type:
DB25 (25-pin D-sub)
Form Factor:
ISA Expansion Card
Compatible With:
IBM PC/AT and compatible ISA-bus systems
Interface Type:
Serial / Synchronous
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Sold as-is, untested. Card only, no accessories included.
Country/Region of Manufacture:
United States
Condition Notes:
IBM 75H8769 SDLC Multiprotocol ISA Adapter sold as-is, untested. Card appears visually intact but functionality is not guaranteed. Listed for parts or repair only. No accessories included.
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