Description
Codex 2173B LDSU Modem PC28537 24VAC 0.25A 50/60Hz Dual DB25 Desktop
The Codex 2173B is a Limited Distance Subscriber Unit (LDSU) modem designed for short-haul data transmission over telephone lines. This desktop unit provides serial communication via dual DB25 connectors.
Specifications & What's Included
- Model: 2173B (MPN: PC28537)
- Power: 24 VAC (CT) 0.25A, 50/60Hz
- Connectors: Dual DB25 (25-pin serial)
- Form Factor: Desktop
- Certifications: CSA Listed, UL Listed
- Manufactured in United States
- Unit only — no accessories included
Applications
LDSU modems like the 2173B were commonly used in legacy telecommunications and industrial control systems for limited-distance data transmission, typically over distances of a few miles. These units were deployed in banking networks, utility systems, and point-of-sale networks that relied on analog telephone line connectivity. The dual DB25 interface supported standard RS-232 serial communication protocols.
Condition: Used
This Codex 2173B LDSU modem has been inspected and appears to be in good used condition. The housing shows normal cosmetic wear consistent with previous office or data center use. The dual DB25 connectors on the rear panel appear intact with no visible damage. No accessories or cables were observed in the photos. Please view our photo set and contact us if you have any questions.
This Codex 2173B LDSU modem has been inspected and appears to be in good used condition. The housing shows normal cosmetic wear consistent with previous office or data center use. The dual DB25 connectors on the rear panel appear intact with no visible damage. No accessories or cables were observed in the photos. Please view our photo set and contact us if you have any questions.
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: |
Codex Corporation |
Model: |
2173B |
MPN: |
PC28537 |
Type: |
LDSU Limited Distance Subscriber Unit Modem |
SKU: |
7317 |
Power Requirements: |
24 VAC (CT) 0.25A 50/60Hz |
Form Factor: |
Desktop |
Connector Type: |
Dual DB25 (25-pin) |
Interface Type: |
DB25 Serial |
Certifications: |
CSA Listed, UL Listed |
Seller Notes: |
Unit only — no accessories observed in photos. |
Country/Region of Manufacture: |
United States |
Condition Notes: |
Codex 2173B LDSU Modem, product code PC28537. Inspected and in good used condition. Housing shows normal wear. Dual DB25 ports appear intact. Unit only, no accessories. Please view photos and contact us with questions. |
Condition: |
Used – Inspected |
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 |
