User guide

Different LAN domain
When two RLH-TG Mux’s are in different Ethernet broadcast domains, IP headers must be used, and
packets will be routed by a gateway router, try following:
• Check if the default gateway IP is defined correctly.
• Check if the local and remote IP is set correctly.
• Check for any conflicts in IP or MAC addresses.
• Make sure the transmission network has enough bandwidth.
Downstream reporting slips
Check if the downstream equipment has correct clock mode. At least one of them must be clock
master. Set the RLH-TG Mux on master side to loop back timing.
If the downstream equipment on both sides is not synchronized, slips are not avoidable.
At the transition time after power on or reapplying the T1/E1signal, slips and errors are acceptable. Such
transition may take several minutes.
If trouble persists, replace the unit and retest. If technical assistance is required, contact the RLH
Industries, inc. technical support department:
800-877-1672 (6 am to 6 pm- PST),
or call our 24/7 Technical/Customer Service: [phone] or [phone]
Troubleshooting! RLH Industries, Inc. - 16 Channel T1/E1 over GE with Fiber! 21