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AT&T Paradyne 3510-A1-001 DSU Modem V.35 EIA-232 2261-SA1 Desktop Telecom AT&T Paradyne 3510-A1-001 DSU Modem V.35 EIA-232 2261-SA1 Desktop Telecom Desktop data service unit (DSU) modem designed for wide-area network (WAN) connectivity. Operates as a line termination device supporting V.35 and EIA-232 serial interfaces for data transmission over dedicated telecommunications circuits. Specifications & What's Included - Model: AT&T Paradyne 3510-A1-001 (MPN: 3510-A1-001)
- Secondary Model: 2261-SA1
- Interfaces: V.35, EIA-232 (RS-232)
- Line Port: RJ48S connector
- Power: 115 VAC, 0.2A, 60 Hz
- Form Factor: Desktop
- Manufactured: June 14, 1995 (United States)
- Compliance: FCC Part 68, UL Listed
- Includes: Power cord modems were standard equipment in telecommunications infrastructure for connecting mainframes, routers, and networking equipment to T1/fractional T1 lines and other dedicated WAN circuits. This unit supports both V.35 (common in older networking gear) and EIA-232 serial connections, making it suitable for legacy systems requiring telecommunications line termination and signal conversion.Condition: Used
This AT&T Paradyne 3510-A1-001 DSU Modem has been inspected and is in good used condition. It was pulled from a working environment where it was in use and functional. The housing shows light wear consistent with normal office use. The front-panel indicator LEDs and pushbuttons are intact, and the rear V.35 and EIA-232 connectors appear clean with no visible damage. The bottom label is fully legible, showing model 3510-A1-001, REC 2261-SA1, serial 3765399, and a manufacture date of 06/14/1995. Please view our photo set and contact us if you have any questions. Visit Our Store Shop industrial, solar, scientific, vintage computing, electronic test, audio-visual, office equipment, and manuals in our store. Start shopping » Follow Our store Want first pick on new arrivals? Tap Save Seller at the top of any page — alerts you the moment we list something new. Fast Shipping We ship via most standard carriers. Local pick-up available at our Ventura, CA warehouse. About Us Questions? Contact us anytime. Learn more about us » Best Offers Want to make an OFFER but don't see a MAKE OFFER button? Use the Contact Seller button at the top of this listing. 30-Day Guarantee 100% satisfaction guaranteed. Any issue, just reach out — we'll make it right. Thank you for shopping with us.
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