Description
Racal-Datacom DSU 6424 64 Kbps Serial DSU RS-232 V.35 DTE Desktop Unit
The Racal-Datacom DSU 6424 is a desktop serial data service unit (DSU) supporting 64 Kbps synchronous data transmission over leased-line circuits. It provides both RS-232 and V.35 DTE interfaces, allowing connection to a wide range of serial DTE equipment, and includes a front-panel LCD display with a numeric keypad for local configuration and status monitoring.
Specifications & What's Included
- Manufacturer: Racal-Datacom
- Model: DSU 6424
- Data Rate: 64 Kbps
- DTE Interface: RS-232 and V.35
- Line Ports: Three RJ-style jacks on rear panel (DL, DSC, NM labeled)
- DTE Connector: DB-25 female on rear panel
- Power Connector: DIN jack, rear panel (external supply required)
- External Power Supply Reference: 25C173-05 (not included)
- Front Panel: LCD display; keypad with EXIT, ENTER, 1, 2, 3, and right-arrow keys
- Form Factor: Desktop
- FCC Registration No.: AP3USA-73376-DD-N
- FCC Compliance: Part 68 and Part 15
- Certifications: UL Listed (EDP Equip 310E, Sunrise), CSA
- What's Included: DSU 6424 unit only — no external power supply
Applications
The DSU 6424 belongs to the class of data service units used to terminate leased digital circuits and interface serial DTE equipment — such as routers, multiplexers, and data terminals — to a carrier's digital network. In the 1980s and 1990s, Racal-Datacom was a well-regarded manufacturer of WAN access equipment, and units like the DSU 6424 were commonly deployed at enterprise customer premises to connect private networks over 56 Kbps and 64 Kbps leased lines. The dual RS-232 and V.35 interface support made these units flexible enough to work with a broad range of contemporary DTE devices. Today, units like this are sought by engineers maintaining legacy synchronous serial WAN infrastructure, by test bench operators who need a period-correct DSU for circuit simulation or test, and by collectors of classic telecom equipment. The front-panel keypad and LCD display allowed local loop-back testing and configuration without requiring a management terminal, which was a practical feature for field deployment.
This Racal-Datacom DSU 6424 serial data service unit has been inspected and appears to be in good used condition. The cream/beige plastic housing shows light surface wear consistent with normal office use. The front-panel LCD display and keypad are present and intact, and all rear-panel connectors — including the RJ line ports, DIN power jack, and DB-25 DTE interface — appear clean and undamaged. Note that no external power supply (model 25C173-05) is included; buyers will need to source a compatible unit separately. Please view our photo set and contact us if you have any questions. 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: |
Racal-Datacom |
Model: |
DSU 6424 |
MPN: |
DSU 6424 |
Type: |
Serial DSU (Data Service Unit) |
SKU: |
14792 |
Data Rate: |
64 Kbps |
Interface Type: |
RS-232, V.35 |
Form Factor: |
Desktop |
FCC Registration No.: |
AP3USA-73376-DD-N |
FCC Compliance: |
Part 68, Part 15 |
Power Supply: |
External — model 25C173-05 |
Certifications: |
UL Listed (EDP Equip 310E), CSA |
Connector Type: |
RJ-11/RJ-45 (line ports), DB-25 (DTE), DIN power |
Display: |
LCD front panel display |
Controls: |
Front-panel keypad: EXIT, ENTER, 1, 2, 3, arrow |
Condition: |
Used – Inspected |
Seller Notes: |
Unit only; no external power supply included. |
Country/Region of Manufacture: |
United States |
Condition Notes: |
This Racal-Datacom DSU 6424 has been inspected and is in good used condition. Housing shows light wear. All ports and connectors appear intact. No external power supply included. Please contact us with any questions. |
