请在下面选择一个分类:
51109693100B
DISCONTINUED BY MANUFACTURER
GROUND TAP
2-4 TAP
WITH TERMINATORS
51403988150
DISCONTINUED BY MANUFACTURER
PROCESS MANAGER COMM CONTROLLER
HIGH PERFORMANCE
FCDCOM232485
DISCONTINUED BY MANUFACTURER
COMMUNICATION INTERFACE MODULE
500MA
5 VDC
1 X RS232 OUTPUT PORT
2 X RS485 OUTPUT PORT