RS-232 Mini Tester
RS-232 Mini-Tester with LED Indicators DB-25 Male to Female
This is an RS232 tester that can be used to troubleshoot bad cables, connections, improper operation of computer or CNC and more.
DB-25 Male to Female Pass Through M/F RS-232 V.24 Serial Mini-Tester
Non Intrusive For DB-25 Data Signal Indication
Serial Tracing Signals: TD / RTS / DSR / CD / RD / CTS / DTR