Black Box ServSwitch ACU2222A-R2 Spécifications Page 119

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118
SERVSWITCH™ AFFINITY
Appendix C: Pinout of the
Dedicated Serial Ports
The table below shows the pinout of the RJ-12 (“6-wire RJ-11”) female RS-232 serial
ports on the ServSwitch Affinity’s Port Cards.
Pin Signal Name Abbrev. Direction Description
1 Data Set Ready DSR Input Reserved (not used)
2 Data Terminal Ready DTR Output Pulled high with 1-k resistor
3 Transmit Data TD Output Serial data from port
4 Signal Ground SGND N/A DC ground reference
5 Receive Data RD Input Serial data to port
6 Request to Send RTS Output Pulled high with 1-k resistor
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