I just bought a used DSP 4000, eventually I will upgrade it to a 4300 but in the meantime I am looking for a Calibration Module, Universal Permanent Link Adapters, Cat 6/5E channel/traffic adapter, Cat 6/5E channel adapter, and the DSP Patch Cord Test Adapter these are the parts I need immediately but in the future I will also be looking for Fiber modules too so if you either have or know of anybody selling any of these items please put let me know.

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