Teltrend DS1DD-200LC Loop Current Repeater

The Teltrend DS1DD-200LC is a DS1/T1 line-powered loop current repeater and surge-protected network demarcation unit. It is used to extend and protect T1/DS1 circuits in enterprise and carrier installations, often installed at the customer premises as part of the telco demarcation setup. Technical specifications: Model: DS1DD-200LC Function: Loop current repeater with line-powered operation Interface type: DS1/T1 (1.544 Mbps) Line code support: AMI and B8ZS Framing: D4 (SF) and ESF compatible Connectors: Dual 110-type punch-down blocks or RJ-48 (varies by configuration) Power: Line-powered (no external AC required) Loopback support: Local and remote loopback capability Mounting: Wall-mount metal enclosure with lockable cover Surge protection: Built-in primary and secondary lightning protection Indicators: Typically includes LED status indicators for line status and loopback Application: Demarcation extension, signal regeneration, isolation from customer equipment Enclosure: NEMA-type painted steel or aluminum with key-lock access Dimensions: Approx. 10.5 in × 6 in × 2.5 in Weight: Approx. 1.8–2.2 kg Made in: USA Please review pictures carefully and let us know if you have any questions!