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Adtran

Adtran DSU II All Rate Data Service Unit V.35 115VAC For Parts or Repair

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SKU:
24294
MPN:
DSU II
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
5.00 LBS
Shipping:
Calculated at Checkout
  • Adtran DSU II All Rate Data Service Unit — front panel view showing LED status indicators and rotary switch, with fixed power cable attached
  • Adtran DSU II front panel close-up showing PRI Sync, SEC Async, and TEST LED indicator groups and Adtran All Rate DSU II branding label
  • Adtran DSU II rear panel showing V.35 PRI Sync port, ASYNC port, PRI Sync Subrate port, Telco RJ port, fuse holder, and 115VAC 60Hz 5W power rating label
  • Adtran DSU II bottom label showing Model DSU II, serial number field, UL Listed and CSA certification marks, and configuration switch table
$60.00
Was: $175.00
Current Stock: 1

Sold Out

Description

Adtran DSU II All Rate Data Service Unit V.35 115VAC For Parts or Repair

The Adtran DSU II is a data service unit designed for T1 and subrate WAN connectivity. It converts between V.35, asynchronous serial, and telco interfaces for legacy telecom and data circuit applications.

Specifications & What's Included

  • Model: DSU II, All Rate (subrate through full T1)
  • Interfaces: V.35 (DB-25), ASYNC, PRI Sync, PRI Sync Subrate, Telco (RJ)
  • Power: 115 VAC, 60 Hz, 5W
  • Fuse: 0.1A Slo-Blo Type 3AG (missing)
  • Fixed power cable included
  • UL Listed and CSA certified

Applications

DSU II units were used in enterprise networks and carrier environments to connect mainframe computers, minicomputers, and routers to T1 and fractional T1 WAN circuits. The device handled protocol conversion between synchronous serial (V.35) and asynchronous interfaces for compatibility with legacy telecom infrastructure. Typical deployments included bank networks, government agencies, and telecommunications facilities requiring reliable data service termination.

Condition: For Parts or Not Working
This Adtran DSU II All Rate Data Service Unit is being sold AS-IS for parts or repair. The unit is missing its fuse and fuse cap (rated 0.1A Slo-Blo Type 3AG), and has not been tested or verified functional. A fixed AC power cable is attached. The chassis and front panel appear cosmetically clean with no visible cracks or major damage. All rear interface ports — V.35 PRI Sync, ASYNC, PRI Sync Subrate, and Telco — are present and appear intact. Due to the missing fuse and fuse cap, we cannot confirm whether this unit powers on or operates correctly, so it is offered strictly as-is. Please view our photo set and contact us if you have any questions.
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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:
Adtran
Model:
DSU II
MPN:
DSU II
Type:
Data Service Unit (DSU)
SKU:
24294
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Missing fuse and fuse cap. Fixed power cable attached. Sold AS-IS.
Country/Region of Manufacture:
United States
Form Factor:
Desktop / Tabletop
Power Requirements:
115 VAC, 60 Hz, 5W
Interface Type:
V.35, ASYNC, PRI Sync, PRI Sync Subrate
Connector Type:
V.35 (DB-25), DB-25, RJ (Telco)
Data Rate:
All Rate (subrate through full T1)
Fuse Rating:
0.1A Slo-Blo Type 3AG
Certifications:
UL Listed (73E7), CSA (LR 85756)
Number of Ports:
4 (PRI Sync V.35, ASYNC, PRI Sync Subrate, Telco)
Compatible With:
T1 and subrate WAN applications, serial data circuits
Condition Notes:
Adtran DSU II All Rate DSU sold AS-IS for parts or repair. Missing fuse and fuse cap (0.1A Slo-Blo 3AG). Fixed power cable included. Not tested. No functionality guarantee.
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Connector Type - PRI Sync:
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Connector Type - Async:
DB-25 (x2: Async, PRI Sync Subrate)
Connector Type - Telco:
RJ-11 / RJ-45 Telco port (rear)
Channels:
Primary Sync, Secondary Async, Subrate
LED Indicators:
CS, SD, RD (PRI Sync & Async), RT, LL, TS, NS, OS, ER (Test)
Configuration:
DIP switch banks SW2, SW3, SW4 (rate, word, async)
Test Selector:
Rotary switch: DATA, LL, RT, EET, ST and mirrored positions
Form Factor:
Desktop / Benchtop
Seller Notes:
Unit only; no accessories included unless shown in photos.
Country/Region of Manufacture:
Japan
Condition Notes:
Fujitsu HA15B-0001-B052 DSU Data Service Unit pulled from a working environment. Enclosure shows light wear. Ports and panel appear intact. Not bench-tested at our facility. Please contact us with any questions.
Condition:
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Availability:
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Weight:
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Type:
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Condition:
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Interface Type:
RS-232, V.35, Telco RJ48S
Number of Ports:
4 (Primary RS-232, Primary V.35, Secondary Channel, Telco)
Connector Type:
DB25 (RS-232), DB37 (V.35), DB25 (Sec Channel), RJ48S (Telco)
Data Rate:
T1 1.544 Mbps
Power Requirements:
115V AC, 60Hz
Form Factor:
Desktop
FCC Registration:
HDCUSA-65263-DE-N
Standards Compliance:
FCC Part 68, USOC Jack Type RJ48S, UL Listed
Country/Region of Manufacture:
United States
Seller Notes:
Sold as-is for parts or repair. Powers on only — not fully tested.
Condition Notes:
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SKU:
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Availability:
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Weight:
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Brand:
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Form Factor:
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Power Requirements:
120V AC, 16VA, 50/60Hz, Single Phase
Interface Type:
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Protocol:
DSU/CSU
Certifications:
UL Listed 374X, FCC Part 15 Class A
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V.35 (34-pin Winchester connector)
Power Requirements:
115VAC, 0.5A fuse
Form Factor:
Desktop / External
Connector Type:
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Data Rate:
T1 1.544 Mbps
Front Panel Indicators:
TXD, RXD, RTS, CTS, DTR, DSR, LSD, TST, CWR, RLS, NIS LEDs
Country/Region of Manufacture:
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Condition:
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Seller Notes:
Includes AC power cord. Pulled from a working environment.
Condition Notes:
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