Zhone 891630, Справочное руководство системы

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4-48 IMACS System Release 5.1.9 Reference Guide
Model No.
Running Head
Cross-Connecting WAN Time Slots System Configuration and Operation
Figure 4-29. Time Slot and Bandwidth Options
TEST
The first Test column allows you to select the test pattern to be applied to this circuit in the
direction of the first WAN link specified. Figure 4-29 shows the options, which you can select
by highlighting the choice and pressing <Enter>. The choices are
off (no testing); all 0 (all
zeros); all 1 (all ones); m_oos (Multiplexer Out Of Sync); 1:1 ("one-to-one" pattern, where a
1 is followed by a zero); 1:7 ("one-to-seven" pattern, where a 1 is followed by seven zeros);
lpbk (loopback); 300 Hz (steady 300 Hz tone); 1KHz (steady 1 kHz tone); and 3KHz (steady
3 kHz tone).
When the circuit is saved, the system will send the selected pattern toward the first end of the
circuit on each time slot, to facilitate testing. When circuit testing is finished, reset the Test
field to the "
off " position. The lpbk (loopback) option loops the circuit back toward the first
WAN link specified.
If you have a voice cross-connect circuit (with or without signaling), you can access these
capabilities from the WAN Cross-Connect Screen. See the review at the end of this section for
more information.