Cisco Cisco Email Security Appliance C190 User Guide
B-7
Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide
OL-25137-01
Appendix B Accessing the Appliance
8
CTS
O
Clear to send
9
RI
I
Ring indicator
Shell
n/a
n/a
Chassis ground
Pin
Signal I/O
Definition