IFBD-HE0708 BE07 User’s Manual
2-4
2.6. Ethernet Communication Conditions
The communication link conditions with the connecting device of the Ethernet are determined by Auto Negotiation.
If this product is connected directly to an intelligent switch hub or intelligent hub, the physical link may take some time to become
established.
In such cases, if set to get the IP address from a DHCP/BOOTP server, a timeout error could occur while waiting to get the address
from DHCP/BOOTP, and it will fail to get the address. (Note 1) A workaround is to change the DIPSW1 to invalidate the timeout for
getting the IP address. For details on how to set DIPSW 1, see section 3.2.3 DIP Switches.
Note 1: This issue sometimes can be overcome by setting up a normal hub (non-intelligent)
between the product and intelligent switch.
2.7. Network Connection Cable
If the connecting device (hub, router or PC) does not support Auto MDI/MDI-X, be careful of the type of cable you use (straight or
cross). Normally, when connecting to a hub or router (MDI-X), use a straight cable. For a PC (MDI), use a cross cable for connecting
Peer-to-Peer.
Use the following cable standards.
Cable Standard: Category 5 or higher UTP cable
Cable Length: 100 m or less
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