RuggedCom RuggedRouter RX1100 - Manual (Page 79)

8. Configuring Frame Relay/PPP And T3/E3
Revision 1.14.3 79 RX1000/RX1100™
8. Configuring Frame Relay/PPP And T3/E3
8.1. Introduction
This chapter familiarizes the user with:
• Configuring Frame Relay and PPP Links
• Viewing status and statistics
• Upgrading Firmware
8.1.1. T3/E3 Fundamentals
T3 refers to a communications link upon which has been imposed a Digital Signal 3 (DS3) signaling
scheme. The scheme allows 672 time slots of 64 Kbps DS0 information to be multiplexed onto a
44.736 Mbps circuit.
E3 refers to the ITU standard corresponding to the mainly North American T3 standard. E3 calls for
512 DS0-equivalent time slots multiplexed onto a 34.368 Mbps circuit.
RuggedRouter provides the ability to operate Frame Relay or PPP over your physical T3/E3 interfaces.
Note
Channel groups and fractional lines are not supported on RuggedRouter T3 and E3 interfaces.
8.1.2. Location Of Interfaces And Labeling
Unlike the Ethernet ports (which are statically located), the location of T1/E1, T3, DDS and ADSL
ports in your router depends on the number of ports and how they are ordered. Refer to the labeled
hardware image as presented in the Webmin home page.
To make labeling easy to understand, all T1/E1, T3/E3, DDS and ADSL ports are assigned a unique
port number that relates to the LEDs on the status panel.
8.1.3. LED Designations
RuggedRouter includes two sources of LED indicated information about T3/E3 lines, the T3/E3 card
itself and the LED Panel.
One LED is associated with each line, next to the interface jack. This LED is red when the link is
disconnected, flashes green when the link is connecting and remains solid green when the link is
established.
The RuggedRouter also indicates information about T3/E3 ports on the LED Panel. A pair of LEDs
will indicate traffic and link status of the port. Consult the section
Using The LED Status Panel to
determine which LEDs correspond to the port.