Original Siemens 6DD1688-1AA0 6DD Series Interface Control Module
Original Siemens 6DD1688-1AA0 SS1 20mA TTY current loop communication submodule, matched with CS7 carrier board, galvanic isolation design for long-distance anti-interference data transmission, widely used in SIMADYN D/TDC drive control systems, Germany origin, 12-month warranty, discontinued industrial spare parts.
Model：6DD1688-1AA0
Brand & Series：Siemens 6DD Series（SIMADYN D / SIMATIC TDC）
Module Type：SS1 20mA TTY Current Loop Communication Submodule
Core Function: Provide industrial 20mA current loop serial communication interface to achieve long-distance data transmission between controllers and operation terminals, printers, and old-fashioned debugging equipment, with electrical isolation and anti electromagnetic interference
Matching Carrier Board: CS7 Series Carrier Board Module
Signal Specification: 20mA TTY current loop, maximum load resistance 1k Ω, signal electrical isolation
Response Time：＜100μs， Stable and reliable transmission
Operating Voltage：12~24V DC
Operating Temperature：-25℃ ~ +60℃
Dimensions（W×H×D）：20 × 66 × 119 mm
Net Weight：0.08kg
Product Status：Original Germany Origin，Discontinued since Oct 2017，Available for sale
Warranty：12 months
Application Scenarios: Remote parameter debugging of high-power transmission systems for metallurgical rolling mills and papermaking cables; Old SIMADYN D control system terminal and peripheral data communication; Long distance serial data transmission in strong interference environments on industrial sites; Replacement and maintenance of spare parts for automated production lines.