ABB ETL600 Instruction Manual page 300

Revision:
A
B.10.3 'Remote subscriber', remote is Pax 2-wire
The following tests must only be done, if the operation mode 'Remote subscriber' is configured at
the local equipment and the operation mode 'Pax 2-wire' is selected at the remote equipment.
1. A functional test must be done to check the ringer. Connect a phone, at local equipment
and feed into remote PAX2W connection a ringing tone with 25 Hz and about 25 VAC.
Connect a 2.2 kΩ resistor between PAX2W input and generator! The generator needn't
be programmed with a special ringing sequence. Now the phone should ring in a typical
sequence.
2. Check the Output level of subscriber:
Use coupling bridges similar to that, shown in Figure 3. The resistor R should be chosen
to 500 Ω, included the resistance of the two coils. If the coupling bridge has polarity.
Check first polarity at external cable of appropriate O4LE, terminal telephony, 0a-0b and
observe polarity of external voltage source.
3. Feed a 800 Hz tone, with the configured level from remote side into remote equipment.
Take a measurement of the output level at the local equipment. It should be in 1 dB range
of the configured output level from the local equipment.
B.10.4 'Remote subscriber', remote is Pax 4-wire
The following tests must only be done, if the operation mode 'Remote subscriber' is configured at
the local equipment and the operation mode 'Pax 4-wire' is selected at the remote equipment.
1. A functional test must be done to check the ringer. Connect a phone, at local equipment
and activate M-WIRE at the remote equipment. If M-WIRE is configured as 'inverted',
contacts at terminal, telephony, 4a-4b must be opened, otherwise closed. The phone
should ring in a typical sequence.
2. Check the Output level of subscriber:
Instead of phone use a coupling bridge similar to that, shown in Figure 3. The resistor R
should be chosen to 500 Ω, included the resistance of the two coils. If the coupling bridge
has polarity. Check first polarity at terminal, telephony, 0a-0b. At remote side generator
can be direct connected to AF1-IN, at terminal, telephony, 1a-1b. M-WIRE should be
activated.
3. Feed a 800 Hz tone, with the configured level from remote side into remote equipment.
Take a measurement of the output level at the local equipment. It should be in 1 dB range
of the configured output level from the local equipment.
Language:
EN
EUT:
O4LE
remote
A32 0a
C32
0b
EUT:
O4LE
local
A32
0a
C32
0b
SUBSCR_Mess3.dsf
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R
5.5 H
110 µF
110 µF
5.5 H
110 µF
R
5.5 H
110 µF
110 µF
5.5 H
110 µF
Figure 2
1KHW001493-EN
Audio Analyzer
Generator Analyzer