Description
Kentrox D-Serv 78222 DSU/CSU T1 V.35 110VAC Desktop Telephone Network Unit
DSU/CSU (Data Service Unit/Channel Service Unit) for T1 line termination and data protocol conversion. Connects T1 telephone network circuits to V.35 serial data interfaces on routers, multiplexers, and networking equipment.
Specifications & What's Included
- Model: Kentrox D-Serv 78222
- Interface: V.35 (DB-style connector) / T1 Network Interface
- Power: 110VAC
- Form Factor: Desktop
- Front Panel Indicators: POWER, FAIL, T1, FAR END ALARM, DATA ALARM, TxD, RxD, CTS, RTS
- Certifications: ETL Listed, UL Std 1459
- Unit only; no cables included
Applications
DSU/CSU units serve as termination equipment for T1 leased lines in telecommunications networks. Historically used in WAN deployments to connect corporate networks, branch offices, and data centers via carrier T1 circuits. The V.35 interface enables integration with Cisco routers, Ascend MAX units, 3Com equipment, and similar networking devices from the 1990s-2000s era. Typically deployed at network edges where T1 circuits from telecom carriers required conversion to serial data protocols.
This Kentrox D-Serv 78222 DSU/CSU has been inspected and appears to be in good condition. The enclosure shows light surface wear consistent with normal office use — no cracks or significant damage. The front-panel LED indicators and labeling are intact and legible. The rear V.35 connector and IEC AC inlet appear clean and undamaged. 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: |
Kentrox |
Model: |
78222 |
MPN: |
78222 |
Type: |
DSU/CSU |
SKU: |
20822 |
Interface Type: |
V.35 |
Network Interface: |
T1 |
Power Requirements: |
110VAC |
Form Factor: |
Desktop |
Certifications: |
ETL Listed; Conforms to UL Std 1459 |
Standards Compliance: |
ETL Listed, UL 1459 Telephone Equipment |
Connector Type: |
V.35 (DB-style), IEC AC inlet |
Front Panel Indicators: |
POWER, FAIL, T1, FAR END ALARM, DATA ALARM, TxD, RxD, CTS, RTS |
Country/Region of Manufacture: |
United States |
Condition: |
Used – Inspected and Pulled from Working Environment |
Seller Notes: |
Unit only; no cables included. Inspected and in good condition. |
Condition Notes: |
Kentrox D-Serv 78222 DSU/CSU inspected and in good used condition. Enclosure shows light surface wear. Front-panel indicators intact. V.35 and AC connectors clean and undamaged. |
