CSUs/DSUs
csus/dsus โ pre-owned
Browse 602 csus/dsus โ pre-owned on eBay โ listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

Adtran T3SU 300 1202217L2 T3 w/ 1x DSX-1 1200284L1 Module AC Multiplexer 3-Slot
The Adtran T3SU 300 1202217L2 T3 w/ 1x DSX-1 1200284L1 Module AC Multiplexer 3-Slot is a high-quality multiplexer product made by ADTRAN in the United States. This model is designed to provide efficient data transmission andmultiplexing capabilities for various communication systems. With its reliable brand reputation and specific model details, this product is a great choice for businesses and organizations seeking reliable network solutions.

Used Black Box 4 Port USB Multimode Fiber Extender IC404A
Receive only what is pictured/listed.
You save $75.00

RAD ETX-203AX CSU/DSU Ethernet Device RJ-45
RAD ETX-203AX CSU/DSU Ethernet Device RJ-45

Adtran NetVanta 3205 Enterprise Router VPN Firewall Gateway P/N 1203870G1
Adtran NetVanta 3205 1203870G1 W Rack Ears. Condition is Used. Shipped with USPS Ground Advantage.

Adtran Atlas 800 DSP 8-Channel Voice Compression 1200221L1 Module
Voice Compression 1200221L1 Module. Adtran Atlas 800 DSP 8-Channel. YOU WILL RECEIVE ONLY WHAT IS PICTURED IN THE AD UNLESS OTHERWISE NOTED. I WILL TRY MY BEST TO RESOLVE ANY ISSUE OR CONCERNS YOU MAY HAVE.

Adtran T3SU Quad DSX-1 1200284L1 OSU 300 DSP Module
The Adtran T3SU Quad DSX-1 1200284L1 OSU 300 DSP Module is a high-quality module designed by ADTRAN for their T3SU platform. This module is specifically designed for quad DSX-1 connections, providing advanced DSP capabilities for efficient data processing. With its reliable performance and compatibility with the T3SU model, this module is essential for ensuring seamless communication and data transmission in various networking applications.

Adtran Atlas 830 890 Dual Video 1200773L1 Module
ATLAS 800 Series option module. Module provides two independent Video Ports for videoconferencing applications. Each Video Port provides an RS-366 dialing interface and an RS-449 synchronous interface.

Adtran Atlas 800 830 890 Async-232 1200182L1 Module
The Async-232 Module combines with other ATLAS components to provide solutions for a variety of wide area networking (WAN) applications. For remote access applications, ATLAS receives incoming analog or ISDN-based signals from remote users, and concentrates them onto T1 or Primary Rate ISDN (PRI) circuits.

StarTech ET91000SFP2C GE SFP Fiber Media Converter Card for ETCHS2U
StarTech ET91000SFP2C.

Adtran Atlas 800 830 890 IMUX-56/64 1200262L1 Module
ATLAS 800 Series option module.

Lot Of 4 IMC MiniMc Fiber / Ethernet Switching Media Converter (10/100/ mbs)
(No power adapter). No other accessories or parts are included. What's included.

Finisar FTLX1471D3BCL 10GBASE-LR SFP+ 1310nm LR Transceiver Module
Boost your network performance with the Finisar FTLX1471D3BCL 10GBASE-LR SFP+ Transceiver Module. With a wavelength of 1310nm and a maximum distance of 10km, it provides long-range connectivity. The module features a Duplex LC connector for seamless integration into your existing network infrastructure.

Legacy Adtran TSU 2nd GEN 1202060L1 LT Full T1 / Fractional FT1 Voice Data Modem
Adtran 2nd GEN TSU LT T1 Modem. Provides an interface between T1 or fractional T1 service and the end user's DTE. The display on the unit is pixelated. Unsure what the cause could be.

Adtran 1184500F3 Opti6100 SCM3
Compatibility: Designed for use in the Adtran Opti6100 optical transport chassis. Ideal for service providers, CLECs, ILECs, and carriers maintaining or expanding Opti6100-based transport infrastructure.

Adtran Atlas 550 PN: 1200305L2 W/ modules
The option for money back is available during the warranty.

Baseband Samsung SLS-BB1180 Base Station free shipping
Includes unit only.

Lot of 2x Adtran Atlas 800 830 890 Quad NX 56/64 V.35 1200184L1 Modules
The product is a lot of two Adtran Atlas 800 830 890 Quad NX 56/64 V.35 1200184L1 modules. These network modules are manufactured by ADTRAN, a well-known brand in the telecommunications industry. Made in China, these modules are designed to provide high-speed network connectivity and reliability for various communication and networking systems. Ideal for businesses and organizations looking to enhance their network infrastructure, these modules offer a reliable and efficient solution for expanding network capacity and improving performance.

Used Allied TELESIS at-mc1004, Media Converter
Receive only what is pictured/listed.
You save $9.00

Adtran Atlas 800 830 890 MODEM-24 1200782L1 Module
The Adtran Atlas 800 830 890 MODEM-24 1200782L1 Module is a network module designed by ADTRAN specifically for the 830 model. This module is a key component for providing modem functionality and ensuring reliable network connectivity. With its high-quality construction and compatibility with the Adtran Atlas 800 series, this module is a vital part of any network setup that requires seamless and efficient communication.

Adtran Atlas 800 830 890 HDLC 1200222L1 Module Free Shipping
The Adtran Atlas 800 830 890 HDLC 1200222L1 Module is a network module designed by ADTRAN, a reputable brand in the industry. This module is specifically designed for use with Adtran Atlas 800, 830, and 890 routers, providing high-definition voice and data capabilities. With free shipping included, this product offers convenience and reliability for businesses looking to enhance their network infrastructure.

ADRTAN Total Access 900e 3rd GEN TA 908e w/FXO - TESTED/FACTORY RESET

FINISAR FTLX1471D3BCL 10GBASE SFP+, LONG WAVE, LC, 1310NM
FINISAR FTLX1471D3BCL. This silver transceiver module is designed to provide high-performance networking and is compatible with various electronic devices. 1 Year Warranty.

Antaira Technologies Optolinx IMP-100A-S3-T Industrial PoE Media Converter
Antaira IMP-100A-S3-T. The IMP-100A-S3-T features a SC fiber connector as well as the STP-RJ45 Ethernet connector. Embedded 1 Port PoE Injector Function. Key Features RJ-45 Port Support Auto MDI/MDI-X Function.
You save $5.00

Black Box MT100A-35-R2 T1 CSU/DSU Modem
Hours of Operation.
You save $8.00

HP JD092B X130 10GbE 10GBASE-SR LC SR SFP+ 850nm Optics Transceiver SPP5100SR-HP
The truth is out there! Asset recovery and recycling services.

StarTech MCM110ST2 10/100 Multi Mode Fiber Ethernet Media Converter FREE S/H
We can then adjust your invoice before checkout. Requesting an Updated Invoice Local Pickup.

Adtran 4243924F1 Total Access 924e 3rd Gen Gateway
Scratches and Scuffs. Unit only includes what is shown in pictures. Tech Titans Inc.
You save $25.01

Adtran Atlas 890 Chassis 1200321L1 w/2*Controller +1*Quad T1 PRI +2*PSU Module
The Adtran Atlas 890 Chassis 1200321L1 is a high-quality data transfer switch designed for enterprise networking. It features two controllers, one quad T1 PRI, and two PSU modules, providing a reliable and efficient networking solution for businesses. With the trusted ADTRAN brand and model Atlas 890, this product ensures top-notch performance and connectivity for a range of networking needs.

ADC Kentrox T-SERV II 01-77965023 Serial Hub RS-232 Network Telecom Beige USA

Lot 5 ADC Kentrox T-SERV II 77965 NCCSDHT4AB CSU/DSU T1 Network Modems
Lot Of 5 Mixed ADC Kentrox 77965 T-SERV II NCCSDHT4AB CSU - Read Ad. All parts are tested and verified working before they are listed. Item Condition & Warranty. HARD DRIVES.
You save $168.46

Adtran OCU 45 1200664L1 Optical Converter MM ST White 48V, No Ac Adapter, WORKS
Adtran OCU 45 1200664L1 Optical Converter โ Multi-Mode ST. Function: Optical Converter (OCU 45). Adtran OCU 45 Optical Converter (1200664L1). 48V AC power adapter (required for operation). Interface: Multi-Mode Fiber (ST connectors).

LUCENT CONNECTREACH Network Dual T1 CSU DSU Integrator DSX Voice Channel Bank
Excellent - Minor surface blemishes that can be seen, but not felt. Technician Support. Good - Small Scratches, minor scuffing.

Adtran Atlas 800 Series MODEM-24 Module 1200782L1

STARTECH ET90110ST2 10/100 RJ45 ST MULTI MODE FIBER

Specialty Microwave Corp. 6793-502 - Broadcasting Switch Controller
Specialty Microwave Corp. 6793-502. Once you place an order, we will confirm everything within 24 hours. If issues arise, we will reach out right away. We appreciate your understanding! Not satisfied?.

Adtran 1202.060L1 T1 Service Unit, TSU 2ND Generation
Key Features: Model: TSU 2nd Generation Part Number: 1202.060L1 Manufacturer: Adtran, Inc.

StarTech 10/100 Mbps Ethernet to Multi Mode SC Fiber Media Converter 2km
The unit is ingood physical condition and has been fully tested to ensure it works perfectly. No other accessories or cables included. Connector: SC.

GLC-FE-100FX-RGD | Cisco | Transceiver Module, 100BASE-X, Used
GLC-FE-100FX-RGD | Cisco | Transceiver Module, Small Form-Factor Pluggable. Transceiver Module. Cisco GLC-FE-100FX-RGD. Is Cisco GLC-FE-100FX-RGD not the part you are wanting?.

10x Adtran TSU ACE 2nd Gen CSU/DSU Data Channel Service Unit 1202295L1, FREESHIP
Model: TSU ACE 2nd Gen - P/N- 1202295L1 - TSU ACE. Make: Adtran. SUM Computers Inc. Item Details Warranty Information.

Cisco SSM-4GE ASA 4GE MOC
We are always looking to buy gently used excess Cisco Networking for cash or trade-in. Data Sanitization: Non-Data Device.