RS232 25 way surge & spike arrestor protector. our part number is SP76.
XT Plotter Laser Jet Cable 25 way "D" plug to 25 way "D" socket 2m 26-3825
PRO SIGNAL - 9-Way D Female to 25-Way D Female Serial Port Adaptor
PRO SIGNAL - 9-Way D Male to 25-Way D Female Serial Port Adaptor
9 Way D Socket to 25 Way D Plug Serial Port Adaptor - PSG92122
NEW ADAPTOR ADAPTER - FEMALE 25 WAY D-SUB TO MALE 9 WAY D-SUB
PRO SIGNAL - 9 Way D Plug to 25 Way D Plug Adaptor