AMERITECH AM8a, Инструкция по эксплуатации

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Configuration Parameters (18-0037) AM8a Instruction Manual
February 10, 2000 0037-S02.L_
2-6
2.4.1
TRUNK TYPE:
The AM8a can be configured to interface with the types indicated by the
alternates shown in the menu. The types may be either direct analog or a voice channel
selected from a
PCM
link.
loop:
This is the simplest type of interface. The terminal seizes a line by closing the
loop. If analog has been selected (see 2.2.2) the equipment is connected to the
LOOP
T/R
jack on the front panel. If PCM has been selected, the conditions are internally
emulated/monitored on a selected voice
CHAN
nel.
ground:
In ground start, the terminal seizes a line by grounding the tip lead. If analog
has been selected (see 2.2.2), the equipment is also connected to the
LOOP T/R
jack on
the front panel. If
PCM
has been selected, the conditions are internally
emulated/monitored on a selected voice
CHAN
nel.
E & M 2W and E & M 4W:
Refer to 2.4.3 for more information.
DID:
This configuration is the same as
LOOP
except the switch initiates the seize and
dialing signals.
SF:
This is a four-wire (
TX
and
RX
) configuration in which signaling and dialing is by
pulsed 2600 Hz tones.
2.4.2
SLC®TYPE:
This selection is only active when
FRAMING
of
SLC®96 I
or
SLC®96 II
has
been selected (see 2.3.2) and is only for monitor mode.
SINGLE PARTY:
must be used with
TRUNK TYPE
loop.
UNIVERSAL VOICE GRADE:
can be loop or ground start.
2.4.3
E & M TYPE:
This selection is only active when
TRUNK TYPE
of
E & M 2W
or
E & M 4W
have been selected. The table below summarizes the connections that must be made to
the equipment for the
TYPE
parameters selected if in analog mode. For
PCM
modes,
the signaling bits will convey information:
E te/line orig.
M switch orig.
SB signal battery
SG signal ground
TX
RX
IV
x
x
x
x II
x
x
x
x III
x
x
x
x
I
x
x
-
- V
x
x
-
-
E & M 2W and 4W
E & M 4W
E & M TRUNK INPUT E & M TYPE
Jack Signals
TRUNK TYPE