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ATS7100/7110 Installation and Troubleshooting Guide 9
IC3
RL2 RL1
CONN3
SpeakerA0
S0 MON
LED 3
LED 2
LED 1
MI LED
CONN4
ATS7100
11
3. Connect the outgoing ISDN line to other ISDN
devices into CONN4.
4. Make 1 loop with the ISDN lines through the ferrite
().
Host power supply
The user must ensure that the power drawn by the
ATS7100/7110 ISDN, together with the host and any
auxiliary terminal equipment drawing power from the
host is within the rating of the host power supply.
MI address selection
The ATS7100/7110 are addressable units, which can
share the panel bus (MI-bus) with other devices. The
A0 jumper must be placed on the two pins beside the
RJ45 ISDN connections (default) to have the correct
address.
Connecting an ISDN terminal to the
ATS7100/7110 ISDN via the S0 out connector
It is possible to connect ISDN terminals to the ISDN
line. Connect all ISDN terminals to the outgoing S0 bus
(CONN4).
If the ATS7100/7110 is the only ISDN device connected
to the NT1, then the ATS7100/7110 can terminate the
S0 bus with 100 Ohm resistors by placing the jumpers
marked “TRM1 & TRM2” on the RJ45 connector side of
the jumpers. Never place these jumpers, in case any
other ISDN terminal is connected to the outgoing ISDN
connector (CONN4).
Never connect telephones in parallel (using
the second RJ45 connector on the NT1) with
the ATS7100/7110 ISDN!
For security reasons, it is recommended that NO
devices be connected to the second RJ45 connector of
the NT1. Proper priority switching is not possible in
case the second RJ45 is used.
Advice should be sought from a telecom telephone
engineer if in any doubt regarding the connection of
these terminals.
2.3. ATS7100/7110 overview
(Ref. to Figure 3)
MI LED, indicates MI communication status
CONN1, connects to ATS control panel
CONN2, connects to other ATS devices
CONN3, RJ45 connector. Incoming ISDN from NT1
CONN4, RJ45 connector. Outgoing ISDN to other
ISDN devices
TRM1/TRM2 jumpers to set ISDN line termination
SPEAKER output, to monitor analogue
communication
A0 jumper. Used to set MI device address
ISDN status LEDs
SO MON connector. RS232 to PC to monitor ISDN
signals
11
ATS7100/7110 EPROM or OTP
Figure 3. ATS7100/7110 overview
2.4. ATS7100/7110 LEDs
MI status LED
The MI status LED (green) displays the status of the
communication interface to the panel. The LED signals
the MI status as shown in the following table:
LED Description
Duty
cycle
Rate
(+/- 10%)
100% - Power ON (in case none of the
cases below are valid)
0% - No Power or Power Failure
25% 1 sec Initialisation OK, waiting for
communication
50% 1 sec Everything OK, communication
running
75% 500 ms Hardware failure
50% 250 ms Failure in communication,
waiting for re-initialisation.
Table 1. MI status LED
ISDN Status LEDs
Three red LED indicators are mounted on the
ATS7100/7110 ISDN PCB. The indicators give the
installer information about the current line status, call
progress, and possible errors. During normal operation,
the indicators are either on, off, blinking, or flashing.
Blinking means 1 second on, 1 second off and so on.
Flashing means 0.1 seconds on and 0.9 seconds off.
When the indicators are blinking in sequence after each
other, at a time interval of 0.5 seconds, a hardware
error is present and the ATS7100/7110 is in factory
diagnostics mode.
9


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