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3 • Configuring the RAS for operation Model 3125 RAS Getting Started Guide
54 Configuring the RAS with a Web browser
– dsx1D4 AT&T D4 format DS1
– For ISDN PRI service, set the line type to dsx1ESF
2. Click on the
Line Coding pop-up menu (see figure 33 on page 49). The most common options are:
dsx1B8ZS and dsx1AMI. For ISDN PRI service, set the line coding to dsx1B8ZS.
3. Click on the
Line Build Out pop-up menu (see figure 33 on page 49) and select t1pulse0dB(1).
4. Click on the
Yellow Alarm Format pop-up menu and choose linkYellowFormatBit2(1).
5. Click on
Submit Query.
At this point, the WAN front panel LEDs will become active. A solid green FRAME light indicator means that
the RAS has synchronized with the T1 line.
Note If you suspect that there is a physical malfunction in the WAN ports,
you can assemble a loopback connector to test the port (see figure 34
on page 50).
If you have an T1/PRI (ISDN) line, refer to “Setting the line signaling for an ISDN/PRI line”. Otherwise, refer
to “Setting the line signaling for a robbed-bit T1 line”.
Setting the line signaling for an ISDN/PRI line
Do the following:
1. Scroll down the
WAN Circuit Configuration window, until the signaling Settings section appears (see
figure 35 on page 51).
2. Click on the
Signal Mode pop-up menu and choose messageOriented(4).
3. Click on the
Message Oriented Switch Type pop-up menu (see figure 35 on page 51) and choose either
ni1(National ISDN 1), dms(Nortel Switch) or att(AT&T Customer).
4. Click on
Submit Query.
Signaling is now configured for ISDN/PRI.
Setting the line signaling for a robbed-bit T1 line
Do the following:
1. Scroll down the
WAN Circuit Configuration window, until the signaling Settings section appears (see
figure 35 on page 51).
2. Click on the Signal Mode pop-up menu and choose robbedBit(3).
3. Click on
Submit Query.
4. Click on the
Robbed-Bit signaling Protocol pop-up menu and choose LinkGroundStart, LinkLoopStart, or
LinkEMWinkStart.
5. Click on
Submit Query.
6. Click on the
Yellow Alarm Format pop-up menu and choose one of the following options:
– For T1 lines with D4/AMI settings, this should be set to linkYellowFormatBit(1).