Installation manual

Authorized Service Personnel ONLY:
Ethernet connection
The COS supports DHCP or static addressing and will hold its IP address through power
cycles. IP address, network sub net mask, and gateway address can be configured through
the serial or Ethernet interfaces.
It is a typical problem with Ethernet controlled devices that once configured with an IP
address, it is difficult to change the configured address if the device is moved to another
network sub net, or if the Ethernet control is only used infrequently by one or more
laptop computers. There are features on the Controller Card to ease this issue.
First DHCP is supported so that an IP address can be automatically assigned based on
the connected network. But leaving DHCP enabled is a problem if connected directly to
a laptop or other PC without a DHCP server.
In this case, Link Local addressing, sometime called “ZeroConf” is supported. With
Link Local addressing, all devices which support it will be able to communicate with
each other without a DHCP server or router being present.
These features are controlled by jumpers H12/H14 on the Controller Front Card. The
jumpers are located on the top side of the card. They are interpreted as follows:
H14
H12
Meaning
Off Off Default Addressing (192.168.0.160)
On Off Link Local Addressing, no server present, direct connection to PC.
Off On DHCP – Address set by server.
On On Use settings saved from last session
Installing H12 and H14 allows configures the Controller card to use the settings of the
previous session when booting. This would be the factory default and normal operating
position. If DHCP or a static address is assigned, it will continue to be used in subsequent
sessions. Units are shipped from the factory with the jumper in this position and DHCP
enabled.
If jumper H12 is in but not H14, the card will boot using DHCP regardless of the settings
of the last session. This will allow connectivity to any network with a DHCP server,
regardless of other settings.
If jumper H14 is installed but not H12, the Controller Card will boot using Link Local
addressing, regardless of the settings of the last session. This will allow connectivity to
a network or individual computer where DHCP server is not available, such as a direct
connection to a laptop.
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