Description
InnoSys 306-009A INSCC Serial Com Port Card DB-25 RS-232 ISA 1989 Vintage
The InnoSys 306-009A is a vintage ISA-bus serial communications expansion card manufactured by InnoSys, Inc. in 1989. Identified internally as INSCC (InnoSys Serial Communications Card) Version 1.1, it provides an RS-232 serial COM port via a DB-25 connector on the card's bracket. The card populates a standard full-length ISA slot and routes serial data through onboard logic built around Toshiba TC9525TPL-10 ICs and a Zilog controller chip.
Specifications & What's Included
- Manufacturer: InnoSys, Inc.
- Part Number: 306-009A
- Firmware / Software Identifier: INSCC Version 1.1
- Copyright / Production Year: 1989
- Bus Interface: ISA (Industry Standard Architecture), full-length card
- External Connector: DB-25 male (25-pin RS-232 serial / COM port)
- Main ICs: Toshiba TC9525TPL-10 (×2, Japan), Zilog controller (visible on front of card)
- Edge Connector: Pansuit 100-096-033 ISA edge connector
- Card only — no cables or accessories included
Applications
ISA serial communications cards like this one were standard expansion peripherals for IBM PC/XT/AT-class computers and compatible systems of the late 1980s and early 1990s. They were used to add or replace COM ports for connecting external devices such as modems, printers, plotters, barcode scanners, serial terminals, and industrial instrumentation. The DB-25 RS-232 interface was the dominant serial standard of the era, and cards in this family were found in business desktops, engineering workstations, and industrial PC enclosures alike. Today these cards are sought by hobbyists, retrocomputing enthusiasts, and technicians maintaining legacy IBM-compatible systems that still require a physical ISA serial port — a form factor unavailable on any modern motherboard. The INSCC designation suggests this may have been designed for a specific host platform or OEM integration, making it of particular interest to collectors and vintage system restorers working with InnoSys-based equipment.
This InnoSys 306-009A INSCC Serial Communications ISA Card has been inspected and appears to be in good used condition. The board shows normal age-related handling wear consistent with a 1989-vintage card; the PCB is clean with no visible damage to traces or components. The DB-25 bracket connector looks intact and the ISA edge connector appears in good shape. This card was pulled from a working environment where it had previously been in use. It has not been powered up or tested at our facility. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
InnoSys |
Model: |
306-009A |
MPN: |
306-009A |
SKU: |
44742 |
Type: |
Serial Communications Expansion Card |
Firmware / Software Version: |
Version 1.1 (INSCC) |
Interface: |
ISA (Industry Standard Architecture) |
Connector Type: |
DB-25 (25-pin male) |
Port Type: |
RS-232 Serial / COM Port |
Form Factor: |
ISA Expansion Card |
Year / Copyright Date: |
1989 |
Compatible With: |
IBM PC/XT/AT and ISA-bus compatible systems |
Country/Region of Manufacture: |
Japan |
Seller Notes: |
Card only; no cables or accessories included. |
Condition Notes: |
This InnoSys 306-009A INSCC Serial ISA Card is in good used condition with normal age wear. The PCB, DB-25 connector, and ISA edge connector all appear intact. Pulled from a working environment; not tested at our facility. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
