User`s manual

EM1500 User’s Manual www.rabbit.com 107
Q: Why don’t I get cables and documentation when I buy an EM1500?
A: To save you money! By packaging these items separately in the EM1500 Tool Kit, you only
buy as many as you need.
Q: Why are there 2 types of serial cables in the EM1500 Tool Kit?
A: The EM1500 is a DTE on serial port 1 (SER1) and a DCE on serial port 2 (SER2). If you want
to connect 2 DTE devices to the EM1500, the straight-through cable would be needed for
SER2 and the null-modem cable would be needed for SER1. Please see Appendix B.1,
“Serial Protocols,” for a detailed explanation of why this is so.
Q: Why are there 2 types of Ethernet cables in the EM1500 Tool Kit?
A: To give you some flexibility. Having both a straight-through and a cross-over cable allows
you to connect the EM1500 either directly to another device with Ethernet, such as a PC, or
to a hub for access to a LAN.
Network
Q: Why is there no default IP address for the EM1500?
A: What would it be? There are, however, 2 default configurations that you can easily copy to
your EM1500 if you are using the stand-alone configuration program. They both turn off
DHCP and assign 10.10.6.100 or 10.10.6.101 to the unit. The default configurations are
entries in the config database, default.emc. See “Select EM1500 for Configuration” on
page 33 for more information.
Q: Why was the connection refused when I pointed my browser at my EM1500?
A: This could happen for various reasons. Here are some things to check:
Is “Enable web browser config” checked on the Network tab? Did you use a valid IP address?
The EM1500 must be configured with an IP address before using a web browser for
configuration. This may be done using directed ping or the stand-alone configuration
program. If you used directed ping, and the EM1500 was reset before you browsed to it, the
IP address may have changed if there is a DHCP server on the same LAN as the EM1500. If
this happened, use the stand-alone program to assign the IP address again and also disable the
use of DHCP.