Section 3
Pass-through allows for flexibility of either Infrared or Ethernet connectivity for each
office or cubicle wall connection. If the EthIR Switch senses an incoming Ethernet
frame it will "pass-through" the frame to the Ethernet network via the pass-through
port. If the EthIR Switch senses an Infrared frame it will convert it to Ethernet and
send it to the network via its Uplink port.
Troubleshooting Issues
A) If the EthIR Switch (all models) fails to obtain IP addresses for connecting devices when
it is set in DHCP mode, check the following:
•
There may not be available IP addresses in the DHCP server pool to allocate for the
device. Contact the network administrator to verify if the DHCP server is up and
running and has enough IP addresses to allocate. If using a multi-port Switch (for
example, the 8 port ES208) and attempting to connect 8 devices, the DHCP server
must allocate at least 8 IPs for the Switches IP Pool. Example: If the DHCP server
can only allocate 4 IP addresses to the Switches IP pool, then only 4 infrared
devices will be able to communicate on the network through the Switch.
B) When using the (ESB101), (EthIR STAR 1000-3000) or (ESB301) to connect to the net-
work, the infrared notebook or handheld device fails to communicate over the DHCP
enabled network. Check the cabling:
•
The (ESB101, ESB1000 and the ESB3000) will not function in a 100 Base-T only
environment.
•
For all EthIR LAN models, except the ESB3011b, insure that a Category 5
Ethernet Patch Cable is used to uplink to the network. Do not use a cross-over cable
to connect the Uplink to the network wall jack.
•
For the (ESB301), insure that the RJ45 cable in the Uplink port is connected to the
network wall jack and not to the Ethernet NIC card in the desktop computer.
The Ethernet to Desktop port is for connecting the ESB301 to the desktop and not to
the network wall jack. Crossing these two ports will result in a failure for the ESB301
to communicate with the network and the desktop computer.
•
For the (ESB3011b), insure that the 802.11b uplink to the 802.11P AP is connected
and stable.
•
Check all cables and make certain they fit properly into each connection.
C) When there is no DHCP server on the network, make sure the correct IP addresses
have been configured on the EthIR Switch.
For Further Information Contact:
Clarinet Systems, Inc.
44040 Fremont Blvd.
Fremont, CA 94538
For updated information on Clarinet Systems products, contacts and FAQ's please visit our web site at
www.clarinetsys.com
www.clarinetsys.com
© 2003 Clarinet Systems, Inc. All Rights Reserved
.
11/02
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