ISC Bunker Ramo S-100 4MHz NETCOM Z80 Communications Card 13-00134 Rev H Rare

Board Designation: 4MHz NETCOM

Assembly Number: 13-00134

PCB Number: 41-00134-003

PCB Revision: E

Assembly Revision: H-003 (sticker)

Processor: Zilog Z0840004PSC Z80 CPU

Communications Controller: Zilog Z0853004PSC Z80 SCC

Timer: Zilog Z0843004PSC Z80 CTC

Memory: AMD AM9128-10PC SRAM and additional onboard memory

Firmware ROM: ISC 78-00188-102

Bus Interface: S-100

Country of Manufacture: USA

Approximate Era: Late communications controller architecture

Zilog Z80 SCC serial communications circuitry

Zilog Z80 CTC timer

Original ISC firmware ROM

Onboard SRAM and DRAM memory

Multiple configuration jumpers

Status indicator LEDs

S-100 bus edge connector

Original vintage through-hole electronic – Untested

Removed from an ISC-Bunker Ramo computer system.

The board appears substantially complete with its original integrated circuits, firmware ROM, memory chips, heatsink, configuration jumpers, and other electronic components present as pictured.

Shows normal signs of age, handling, and previous installation.

No operational testing has been performed. Working condition is unknown.

This is specialized vintage S-100 communications hardware intended for ISC-Bunker Ramo computer systems.

Compatibility with other S-100 computers or networking equipment has not been verified.

Proper operation may require specific ISC hardware, firmware, software, cables, or configuration settings.

Please examine all photographs carefully for exact condition, component configuration, and part numbers.

Included: One ISC Bunker Ramo 4MHz NETCOM S-100 communications controller circuit board only.

No cables, software, manuals, or additional accessories included.

Suitable for vintage computer restoration, replacement parts, or collectors of ISC Systems, Bunker Ramo, Zilog Z80, and S-100 computing hardware.

Terms of Sale

Payment is expected within 3 days of item purchase. Returns are accepted within 30 days on all items except those listed as FOR PARTS/ NOT WORKING. Buyer is responsible for return shipping cost. We strive to deliver the best buyer experience as possible. So, do not hesitate to reach out to us if needed.

Shipping Information

All items are securely packaged and dispatched within 3 business days (Usually next business day). Insurance is included on all items shipped.

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