6DD1661-0AD0 - Siemens | SIMATIC TDC Communication Module Spare 4-Channel Relay Control Module 6640635A1 is a hydraulic servo

6640635A1 is a hydraulic servo termination unit designed for precise integration of hydraulic systems in industrial automation

1500 V AC (backplane)

and metal film resistors

Design Type: True online topology for load isolation

6DD1661-0AD0 - Siemens | SIMATIC TDC Communication Module Spare 4-Channel Relay Control Module 6640635A1 is a hydraulic servoOverview 6DD1661 0AD0 is a Siemens SIMATIC TDC Communication Module designed for industrial communication with PROFIBUS DP and MPI interfaces. Communication Interfaces PROFIBUS DP interface (X1 X2): 2 (X1 + X2 optionally DP or MPI) MPI interface: 2 Parameter assignment and diagnostics interface: Yes Routing function to other CP modules: No Memory Communication memory: Buffer memory module DRAM: 8 MB VMEbus configuration memory: Included Electrical