Panasonic KX-TD500 Installation Manual page 198

Item
Card
Mode
Result
Error
Indication
Error Message
Speech path
failure
Control signal
path failure
[Caller ID Loop Back Test]
Utility
Table 40: Description
Display/Input Value
Card No. : Type The card number and the type of the target
card to be diagnosed. (The card specified in
"Card Information" screen is displayed
automatically.)
Internal Used to specify "Internal Loop Back" or
"External Loop Back". (T1 card only)
External
OK The results of diagnosis.
NG
See "Error Indication The details of an error.
Table".
Displayed only when Result is NG (no
good).
Table 41: Error Indication Table
Description
Speech path is abnormal.
Control signal path is abnormal.
Description
Card
Applied
T1
T1
4.2 Diagnosis
Figure 166:
199