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  3. DATA SNAA000012321

DATA GENERAL SNAA000012321 Dgc Comm Pcb 11V8 Comm. I/o 107C19000-04.09

107c19000-04.09 Data General Snaa000012321 Dgc 11v8 Comm. Basic I/o Pcb Assembly Used

( Brand: Data General ), ( Manufacturer Part Number: SNAA000012321 ), ( Mounting Style: Edge Connector ), ( Pcb Type: Single-sided Pcb ), ( Series: Dgc 11v8 ), ( Number Of Tie-points: 256 ), ( Operating Voltage: 11 V ), ( Item Height: 1.6 Mm ), ( Material: Fr-4 ), ( Item Length: 330.2 Mm ), ( Item Width: 266.7 Mm )

Review DATA GENERAL Dgc 11v8 Comm. Basic I/o Pcb Assembly Used

The **Data General SNAA000012321 DG-C 11V8 COMM I/O PCB (Part Number: 107C19000-04.09)** is a critical high-performance printed circuit board (PCB) designed for the Data General Eclipse MV/8000 series and other compatible systems, serving as the central interface for communication and input/output (I/O) operations. This board was engineered to facilitate seamless data transfer between the host system and external peripherals, including terminals, disk drives, tape units, and network devices, ensuring robust and efficient system connectivity. Built with a robust design, the 11V8 COMM I/O PCB incorporates multiple high-speed serial communication channels, typically supporting asynchronous data transmission protocols such as RS-232, RS-422, and RS-423, as well as synchronous data links for high-volume I/O operations. The board features a dense array of connectors, including edge-card connectors, backplane connectors, and modular expansion slots, allowing for flexible integration with a variety of I/O devices and expansion cards. Its architecture includes dedicated control logic, memory buffers, and handshake circuitry to manage data flow, error detection, and protocol conversion, ensuring reliable communication even under heavy workloads. The 107C19000-04.09 revision denotes a specific firmware or hardware variant, which may include optimizations for performance, compatibility, or support for additional protocols, making it a specialized component for legacy Data General systems requiring high-speed, multi-channel I/O capabilities. This PCB is essential for maintaining the operational integrity of systems that rely on robust, scalable communication infrastructure, making it a sought-after part for restoration, upgrade, or maintenance projects involving Data General s mid-range computing platforms.

### **Analysis of buying a Data General SNAA000012321 (DGC 11V8 Comm I/O PCB 107C19000-04.09)**

#### **Overview**

The **Data General SNAA000012321 (DGC 11V8 Communication I/O PCB, part number 107C19000-04.09)** is a critical printed circuit board (PCB) for the **Data General Eclipse MV/8000 series** (specifically the **MV/8000 with the 11V8 Communications Option**). This board handles serial communication interfaces, network connectivity, and peripheral I/O for the system. Due to its age (1980s-era hardware), sourcing this part is challenging, and purchasing it involves several trade-offs.

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### **Pros of Buying This Part**

1. **Functionality Preservation**

- The **11V8 Communications Option** was a key feature of the Eclipse MV/8000, enabling **serial ports, network connectivity (e.g., DECnet, Ethernet via adapters), and peripheral I/O**. Without this PCB, the system would lose critical communication capabilities, rendering it partially or fully unusable for modern or legacy applications.

- If you are **restoring a Data General Eclipse MV/8000 for historical, educational, or niche business use**, this board is essential for full functionality.

2. **Compatibility with Existing Systems**

- The **107C19000-04.09** is a **revision of the 11V8 Comm I/O PCB**, meaning it is **directly compatible** with the MV/8000 s backplane and software. No additional firmware or hardware modifications are typically required beyond proper installation.

- If the system already has **working memory, CPU, and other I/O boards**, adding this PCB will restore communication features without major integration issues.

3. **Potential for Legacy Software Use**

- Some **old business applications, scientific computing programs, or database systems** from the 1980s were designed specifically for the **Eclipse MV/8000 with the 11V8 option**. If you are running **legacy software that requires serial ports or network access**, this PCB is necessary.

- Certain **emulation projects** (e.g., running MV/8000 software on modern hardware via virtualization) may still benefit from physical hardware for **hardware-accelerated I/O**.

4. **Collectible Value for Enthusiasts**

- For **retro computing collectors**, fully functional Data General systems are rare. Owning a complete MV/8000 with all necessary I/O boards (including the 11V8) increases the system s **historical and monetary value** in niche markets.

- Some collectors pay premiums for **fully restored systems**, making this a potential investment if the market for vintage minicomputers remains active.

5. **Possible Resale or Lease Opportunities**

- If you are **not using the system personally**, you may be able to **resell or lease** the PCB (or the entire system) to **museums, universities, or businesses** that require legacy computing environments.

- Certain **government or defense contractors** still use or preserve old minicomputers for **legacy system integration** or training purposes.

---

### **Cons of Buying This Part**

1. **Extremely Limited Availability**

- Data General went out of business in **1994**, and production of Eclipse minicomputers (including the MV/8000) **ceased decades ago**. Finding an **original, unused, or tested** 107C19000-04.09 PCB is **exceptionally difficult**.

- Most available units are **from dismantled systems**, meaning they may have **wear, damaged connectors, or failed components** (e.g., capacitors, resistors, or solder joints).

- **No official manufacturer support** exists any issues would require **self-repair or reverse-engineering**.

2. **High Cost Relative to Value**

- When available, these parts are **expensive**, often **$500 $2,000 ** depending on condition and seller. This is **prohibitive for casual collectors** or hobbyists.

- The **cost-benefit ratio is poor** unless you have a **specific, high-value use case** (e.g., running critical legacy software, restoring a rare system for sale).

- **Shipping risks** (damage in transit) and **authenticity concerns** (counterfeit or mislabeled parts) add to the expense.

3. **Technical Challenges in Integration**

- Even if the PCB is **physically compatible**, **backplane pinouts, power requirements, and signal levels** may vary slightly between revisions. **Testing is required** to ensure proper function.

- **No modern documentation** exists troubleshooting issues would require **reverse-engineering schematics** (if available) or relying on **obscure forums** (e.g., VCFED, Retro Computing).

- **Power supply compatibility** must be verified some MV/8000 systems had **unique voltage requirements**, and a failing power supply could damage the PCB.

4. **Lack of Spare Parts and Repairability**

- Unlike modern hardware, **replacing individual components** (e.g., a failed RAM chip, connector, or transistor) is **difficult** due to:

- **Obsolete component availability** (e.g., specific ICs, capacitors, or connectors may no longer be manufactured).

- **No surface-mount equivalents** for many through-hole components, requiring **manual soldering of rare parts**.

- **No official repair manuals** repairs would require **disassembly, testing, and possibly custom fabrication** of missing parts.

5. **Software and Driver Limitations**

- Even if the hardware works, **modern operating systems (Windows, Linux, etc.) will not natively support** the 11V8 Comm I/O board.

- Running **legacy software** (e.g., **MV/8000 s native OS, AOS/VS**) requires:

- **Emulation** (e.g., **SimH, MV8000 emulator**), which may not fully replicate hardware I/O.

- **Specialized drivers or terminal emulators** for serial/network communication, which are **rarely updated**.

- **No cloud or modern network compatibility** the board was designed for **RS-232, DECnet, or early Ethernet**, not USB, Wi-Fi, or TCP/IP stacks.

6. **Depreciation Risk**

- Unlike modern hardware, **vintage minicomputers do not appreciate in value** over time. The market for them is **niche and declining**.

- If you purchase this for **collecting**, the **resale value may not justify the initial cost** unless you have a **proven buyer** (e.g., a museum or corporate archive).

- **Storage and preservation costs** (climate-controlled environments, anti-static measures) add long-term expenses.

7. **Ethical and Environmental Concerns**

- **E-waste implications** if the PCB is **dismantled from a dead system**, purchasing it may contribute to **unethical mining of rare electronics**.

- **Energy and labor costs** restoring and maintaining such hardware is **resource-intensive**, with **high opportunity costs** compared to modern alternatives.

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### **Conclusion**

Buying the **Data General SNAA000012321 (107C19000-04.09) Comm I/O PCB** is **justified only under very specific circumstances**. The decision hinges on **whether the cost, effort, and limitations align with your goals**.

#### **When It Makes Sense to Buy:**

**You are restoring a Data General Eclipse MV/8000 for a high-value purpose** (e.g., running critical legacy software, preserving a rare system for a museum, or selling it at a profit).

**You have access to a tested, working unit** (preferably from a **trusted seller with documentation**).

**You are prepared for extensive troubleshooting, potential repairs, and lack of modern support**.

**You have a clear use case** (e.g., a business or academic institution that **requires** this hardware for compatibility).

**You are a collector with deep pockets and patience**, willing to accept the **high risk and low resale value**.

#### **When It Does Not Make Sense to Buy:**

**You are a hobbyist or casual collector** modern alternatives (e.g., emulation, Raspberry Pi-based retro systems) are **far more practical**.

**You lack technical skills** repairing or integrating this board requires **experience with vintage electronics**.

**You do not have a specific, proven use case** without a **clear reason to own it**, the expense is not justified.

**You prioritize cost efficiency** modern virtualization or cloud-based legacy computing is **far cheaper and more reliable**.

**You are not willing to accept the risks** (e.g., non-functional parts, lack of spare components, no warranty).

---

### **Recommendation**

1. **Explore Emulation First**

- Before spending **hundred

Details:

BASIC I/O PCB Assembly 107C19000-04.09 is a single-sided printed circuit board featuring edge connectors for easy mounting. Made of FR-4 material, this PCB assembly measures 330.2mm in length , 266.7mm width , and 1.6mm height , providing a solid reliable foundation for electronic components semiconductors.

part #: snaa000012321 price

  • $950.00

specifications pcbemdev:

  • brand: Data General
  • mpn: Snaa000012321
  • mounting style: Edge Connector
  • pcb type: Single-sided Pcb
  • series: Dgc 11v8
  • number of tie-points: 256
  • operating voltage: 11 V
  • item height: 1.6 Mm
  • material: Fr-4
  • item length: 330.2 Mm
  • item width: 266.7 Mm

general pcbemdev:

  • Electronic Components Semiconductors > Circuit Boards Prototyping > Printed Circuit Boards PCBs
  • condition: Used

shipping pcbemdev:

  • cost: $10.69
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage
  • type: Calculated
  • transit: 5-11 Days

payments pcbemdev:

  • credit card: Diners-club
  • wallet: Paypal
  • other

returns pcbemdev:

  • policy: No Returns

offer pcbemdev:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: May 21, 2026
  • best offers: True
  • quantity: 1

seller pcbemdev:

  • rating: 100.0%
  • # reviews: 34
  • city: Washington, Vermont
mounting style: edge connector, pcb type: single-sided pcb, series: dgc 11v8, number of tie-points: 256, operating voltage: 11 v, item height: 1.6 mm, item length: 330.2 mm, item width: 266.7 mm,
category: business & industrial > electronic components semiconductors > circuit boards prototyping > printed circuit boards pcbs, material: fr-4, sku: 17558729979379793,
Data General SNAA000012321 Is Similar To:
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1 offer $950.00 USD
  • Used. Offer #1 priced at $950.00 + $10.69 shipping estimate = $960.69* total. Made of FR-4 material, this PCB assembly measures 330.2mm in length, 266.7mm in width, and 1.6mm in height, providing a solid and reliable foundation for electronic components and semiconductors. BASIC I/O PCB Assembly is a single-sided printed circuit board featuring edge connectors for easy mounting.+$10.69 shipping

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