IBM 3745 Problem Determination Manual page 298

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Figure 9-4. IBM 5869 Portable Keypad Display (PKD) plugged to a LlC5 or a LlC6.
Warning: This test is disruptive for the whole link (point-to.;.point or multipoint) even if only one station
of a multipoint link is fail,ing.
Notes:
1.
2.
3.
4.
5.
LLAP cannot be performed on a tributary L1C6 of a multipoint link, or on a secondary L1C6 of a
pOint-to-point link.
LLAP performs problem determination only on the first telephone link. It does not help with
problem determination on a secondary link in, for example, a tailing configuration.
LLAP is not supported when a
LIe
6 is connected to an IBM Modem 5821 Model 10.
If you have just installed or reconfigured the L1C, check the configuration with the PKD before
performing automatic problem determination.
NETW SERVICE must be ON for the local L1C (refer to the configuration setting procedure for the
L1e6 in the 3745 Connection and Integration Guide) and for the remote modem.
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Ask the host operator to reactivate the link (if not done on step .5). The green lamp
should be on. . ,
The link must be active for correct LLAP testing and hc;lve attempted data
transmission within the previous 15 minutes.
Chapter 9. LlC and Line Problems (LSS)
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