Description
Astrocom 4100 M075601010 Software Defined Multiplexer 32-Port RS-232 110V
The Astrocom 4100 is a rackmount software defined statistical multiplexer designed to aggregate multiple asynchronous RS-232 serial data streams over a single high-speed link. The 4100 series provided centralized multi-port serial concentration for data communications environments, allowing up to 32 RS-232 devices to share a common trunk connection. This unit is being sold AS-IS for parts or repair and has not been tested.
Specifications & What's Included
- Brand: Astrocom
- Model: 4100 Software Defined Multiplexer
- Part Number: M075601010 (also referenced as MO75601010)
- Configuration (per rating plate): 16P RM STAT ONLY 19.2K RS232
- Date Code: 12-90-4 (December 1990, Made in USA)
- RS-232 Ports: 32 x DB-25 (25-pin) asynchronous serial ports
- Mux Port: 1 x DB-25 (25-pin) multiplexed trunk port
- Data Rate: 19.2 Kbps
- Power: 110V AC, 60Hz, single phase
- Form Factor: Rackmount chassis with rack ears
- Front Panel: Port activity LEDs (numbered 1–32), LCD display, navigation buttons, Power and Link indicators
- Rear Panel: 32 DB-25 serial ports, 1 large DB-25 Mux port, IEC power inlet, rocker power switch, cooling fan
- Country of Manufacture: United States
Applications
Statistical multiplexers like the Astrocom 4100 were widely used in corporate data centers, university computing environments, and industrial control rooms during the late 1980s and early 1990s — this unit dates from December 1990. They allowed a large number of RS-232 terminals, printers, modems, and other serial devices to share expensive leased-line or WAN bandwidth by statistically combining their traffic onto a single high-speed aggregate link. The 4100's software-defined architecture meant port assignments and data rates could be configured in software rather than requiring hardware changes, making it flexible for evolving network topologies. These units connected RS-232 hosts (minicomputers, Unix workstations, IBM midrange systems) to clusters of dumb terminals or serial peripherals across a campus or building. Today, units like this are primarily of interest for parts, legacy system support, or restoration of period-correct data communications setups.
This Astrocom 4100 Software Defined Multiplexer (M075601010) is being sold AS-IS for parts or repair. It has not been tested and no functionality is guaranteed. The unit is physically complete and the chassis, ports, and panel appear intact in photos, but its operational status is unknown. Please review our photo set carefully and contact us with any questions before purchasing. 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.
Warranty Information
Additional Information
Brand: |
Astrocom |
Model: |
4100 |
MPN: |
M075601010 |
Secondary Model: |
MO75601010 |
Type: |
Software Defined Multiplexer |
SKU: |
14539 |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
Sold AS-IS; includes unit with 32 RS-232 ports and 1 Mux port |
Country/Region of Manufacture: |
United States |
Form Factor: |
Rackmount |
Power Requirements: |
110V AC, 60Hz |
Number of Ports: |
32 RS-232 (25-pin) + 1 Mux port (25-pin) |
Interface Type: |
RS-232 |
Connector Type: |
DB-25 (25-pin) |
Data Rate: |
19.2K |
Configuration: |
16P RM STAT ONLY 19.2K RS232 |
Date Code: |
12-90-4 |
Management Type: |
Software Defined |
Phase: |
Single Phase |
Condition Notes: |
Astrocom 4100 M075601010 Software Defined Multiplexer sold AS-IS for parts or repair. Not tested; no functionality guaranteed. Physically complete. Please view photos and contact us with questions. |
