AMERITECH AM8a, Инструкция по эксплуатации

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Front Panel Operation (18-0037) AM8a Instruction Manual
February 10, 2000 0037-S01.L_
1-12
1.6.2
START Key:
This key transmits the "Start" signal according to the "Start Signal"
parameter that has been defined by the "
DIALING: START SIGNAL
"
EMULATE
parameter.
•
For "dial tone", another press of the key will remove it.
•
For "delay" start signal (similar to "wink"), another press before it's programmed
end time (
START TIME: DLY: /ENDms
) will terminate it.
•
For "wink", each press will send a "wink" of the programmed duration (
WINK:
/DURms
).
•
For "immediate" dial, it has no function for a Te/Line that is set for analog (loop)
operation.
1.6.3
RING Key:
This key sends ringing to alert the terminal equipment that a call is coming
from the AM8a. Ringing will be applied according to the "
RINGING:
" parameters given
in the
EMULATE
Setup. Pressing the
RING
key again will remove the ringing signal.
CAUTION:
Placing an excessive (
>5 REN
) Load across Tip Ring during Ring
application may cause the AM8a to reset. Ringing will not be
generated if any of the following conditions exist:
1. Low battery indication on display.
2. Loop is seized ( i.e. Off Hook).
3. If > 14mA ring trip current is detected.
4. An excessive ringer load exists for several minutes.
5. Unit is emulating a
TE/LINE
in analog loop mode.
1.6.4
REV Key:
This key controls battery polarity for the line under test when emulating a
Switch. Each press changes the polarity on the line. This key is equivalent to the
SEIZE
key when Emulating
TE/LINE
equipment.
1.6.5
SEND TONE ([SHIFT][RING]) key:
This is a secondary function of the
RING
key. Press
[
SHIFT
] then [
RING
] and the AM8a will send a single tone at the Level and Frequency
programmed in the
EMULATE
"
SEND TONE:
" setup parameters.