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•
Internal Ethernet port (Int 1) – Internal 100 Mb Ethernet port, (for communication
between dual redundant CPUs) (CPU 3680 only)
Plug-in port bays, where different types of ports can be installed:
•
Plug-in 1 (PI1) – fits RS232, RS485, 10 MB Ethernet, 10/100 MB Ethernet, or Radio
Modem Plug-in option
•
Plug-in 2 (PI2) – fits RS232, RS485, 10 MB Ethernet, or Radio Modem Plug-in port
option.
For the detailed specifications of each port, see CPU 3640 Module Specifications and CPU
3680 Module Specifications below. For information on the cables and connectors, see
Appendix C.
The ACE3600 Ethernet port performs an Auto-Negotiation procedure whenever a
peer device connection is detected at a 10/100 Mbps Ethernet port.. The Auto-
Negotiation procedure guarantees that the speeds of ACE3600 and peer Ethernet ports
will match, whether or not the peer supports Auto-Negotiation. If the peer supports
Auto-Negotiation, the duplex of ACE3600 and the peer Ethernet ports also match.
It is recommended to configure the Ethernet port of the device connected to the
ACE3600 Ethernet port (e.g. switch, etc.) to Auto-Negotiation mode. This will
guarantee a full match of speed and duplex between the ACE3600 and the peer device
Ethernet ports. If the peer device Ethernet port does not support Auto-Negotiation,
set the duplex of the peer to half duplex to avoid the duplex mismatch problem.
Speed Match
with
ACE3600
Duplex Match
with
ACE3600
Buzzer
The CPU module includes a buzzer (audio indication), which is used to indicate task
completion (such as end of download/upload, restart etc.) and can also be controlled from the
user application program.
Peer Ethernet Port Mode
Auto
100 Mbs
Full Duplex
4-3
100 Mbs
10 Mbs
Half Duplex
Full Duplex
CPU Module
10 Mbs
Half Duplex
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