Table A-14. Auto-Negotiation/Forced Mode Combinations - GatesAir Intraplex DS-64NC Installation And Operation Manual

DS-64NC Synchronous Data Module
Version 9.1

Table A-14. Auto-Negotiation/Forced Mode Combinations

Auto-Neg
Auto-Neg Valid Link
Forced Unstable
100 FD
Forced
Valid Link
100 HD
Forced
Unstable
100 HD
Forced
Valid Link
100 HD
The Link light varies to indicate the current link state:
● Valid Link – The light is green and steadily on. The MA-428 module adapter is ready to operate.
There should be no data loss.
● No Link – The Link light is not on and there should not be any data transfer.
● Unstable Link – A few of the Ethernet network interface cards (NICs) in the computer may not be
able to identify the duplex mode on the other end. Because of this limitation, auto-negotiation
does not always work and the module adapter defaults to half-duplex.
● False Link – Even though the link is established, data loss occurs.
A-18
Forced 100 FD
Unstable Link
Valid Link
Link
False Link
No Link
Link
No Link
Appendix A –Module Adapters for the DS-64NC Module
Computer Modes
Forced 100 HD
Valid Link
False Link
Valid Link
No Link
No Link
Forced 10 FD Forced 10 HD
Unstable Link Valid Link
No Link No Link
No Link No Link
Valid Link False Link
False Link Valid Link
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