--- product_id: 52317957 title: "Adtran Tsu Esp Single Port T1-Ft1 Snmp Dsu/Csu" brand: "adtran" price: "VT3713" currency: VUV in_stock: false url: https://www.desertcart.vu/products/52317957-adtran-tsu-esp-single-port-t1-ft1-snmp-dsu-csu store_origin: VU region: Vanuatu --- # 1.536 Mbps max sync rate Automatic dial backup failover SNMP & Telnet network management Adtran Tsu Esp Single Port T1-Ft1 Snmp Dsu/Csu **Brand:** adtran **Price:** VT3713 **Availability:** ❌ Out of Stock ## Summary > 🚀 Future-proof your network with failover you can trust! ## Quick Answers - **What is this?** Adtran Tsu Esp Single Port T1-Ft1 Snmp Dsu/Csu by adtran - **How much does it cost?** VT3713 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/52317957-adtran-tsu-esp-single-port-t1-ft1-snmp-dsu-csu) ## Best For - adtran enthusiasts ## Why This Product - Trusted adtran brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Modular Flexibility:** Plug-in DBU cards support multiple backup protocols including ISDN and Switched 56. - • **Fail-Safe Dial Backup:** Automatic switched backup ensures zero downtime during T1 line failures. - • **User-Friendly Interface:** 16-key pad with LCD display for intuitive local configuration and diagnostics. - • **Advanced Network Management:** Embedded SNMP and Telnet support for real-time monitoring and control. - • **Seamless T1/FT1 Integration:** Connects your legacy circuits with modern data terminals effortlessly. ## Overview The ADTRAN TSU ESP is a robust single-port T1/FT1 DSU/CSU designed for professional-grade network reliability. Supporting synchronous data rates up to 1.536 Mbps, it features embedded SNMP and Telnet for seamless network management, plus modular dial backup options that automatically switch to alternate lines during failures. Its user-friendly interface and comprehensive test capabilities make it an essential tool for maintaining uninterrupted, high-performance data connectivity in mission-critical environments. ## Description The ADTRAN TSU ESP is a full-featured T1/FT1 Data Service/Channel Service Unit (DSU/CSU) with an integral SNMP agent and optional, modular dial backup (DBU) capabilities. It provides an interface between T1 or Fractional T1 service and the customer's data terminal equipment (DTE). The TSU ESP provides access to traditional dedicated point-to-point T1 circuits as well as Frame Relay services. The TSU ESP supports synchronous data rates from 56 kbps to 1.536 Mbps at Nx56 or Nx64 kbps. A single V.35 physical interface provides a connection to the end user's DTE. Embedded SNMP and Telnet are available through the integral SLIP or an optional 10BaseT Ethernet port when configured with the plug-in ESP Ethernet card. Through the Management Information Base (MIB)-II standard and an ADTRAN supplied enterprise MIB, the TSU ESP can be configured and monitored using standard SNMP network management programs such as HP OpenView, Netview and SunNet Manager. The Dial Backup capability of the TSU ESP allows for automatic switched backup in the event of a dedicated T1 line failure. The Dial Backup is accomplished through a family of plug-in ESP DBU cards. Several versions of ESP DBU cards are available including 4-wire Switched 56, 2B+D ISDN, and External DCE. When a failure condition occurs on the T1/FT1, the DBU card utilizes the switched network (ISDN, 4-wire Switched 56) or DTR dialing (External DCE) to initiate a call to the remote end. The user can choose whether the unit automatically or manually reverts to the dedicated circuit when it is restored. Optional Weekend and Time of Day Dial Backup lockout options are provided in the TSU ESP DBU option menu. The TSU ESP responds to standard loopback commands from the telephone company central office. In addition, the user has several built-in test capabilities. These include V.54 remote loopback and 511 BERT test patterns. Complete unit control and configuration are available through a 16-key pad and a two-line, 16 character LCD ## Features - Picture may not match actual product. Please contact Seller for more detailed pictures in the event of an unclear image. - TSU ESP V.35 NX56/64 - Many of these parts and models are old; please contact the individual sellers if more details are needed. ## Product Details - **Brand:** ADTRAN - **Connectivity Technology:** Ethernet - **Number of Ports:** 1 - **UPC:** 607565002564 - **Global Trade Identification Number:** 00607565002564 ## Images ![Adtran Tsu Esp Single Port T1-Ft1 Snmp Dsu/Csu - Image 1](https://m.media-amazon.com/images/I/3116F2VKH7L.jpg) ![Adtran Tsu Esp Single Port T1-Ft1 Snmp Dsu/Csu - Image 2](https://m.media-amazon.com/images/I/3174Z83J05L.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/52317957-adtran-tsu-esp-single-port-t1-ft1-snmp-dsu-csu](https://www.desertcart.vu/products/52317957-adtran-tsu-esp-single-port-t1-ft1-snmp-dsu-csu) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*