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O K p h o n e , L L C M O D E L 5 2 4 S A B O P E R A T I O N S M A N U A L
Page
5
524
MISCELLANEOUS
1.
The
Model 524
has 4 ports for 4wire connection, and 2 ports for 2wire connection.
The DEMO unit has only 2 ports activated, Ports 1 & 2, Port 3&4 are disabled.
Port 1 is designated as the Circuit port, and ports 2-4 are designated for Terminal use.
PORT 1 <> PORT2 is connected at all times, except for a brief duration, when the
524
is
attempting to connect to the 2Wire Remote Phone. All 4wire ports are disabled until the
PASSKEY has been entered to establish the BRIDGED condition. If the PASSKEY is not
entered before the 30 second timeout occurs, then the BRIDGE attempt is aborted and the
4wire ports are renabled.
2.
The
Model 524
only recognizes DTMF signals for dialing.
Pulse dialing hasn
’t been configured.
3.
Terminals can be powered off the LINE cord connection, if a separate 12-24vdc power supply
is connected to the green connector on the back panel of the
524.
The DEMO has not
enabled this feature.
4.
The PORT1 RX/TX adjustment pots are enabled on the back panel of the
524
.
Port 1 RX is expecting a -8dBm signal, so by adjusting the {left pot} RX potentiometer, one can
effect a boost/cut condition for PORT2 TX and the 2W remote terminal. Present factory
settings gives -8dBm at TX out for PORT2 as well as -8dBm out for
2WIRE REMOTE PHONE
.
Port 1 TX is also set for -8dBm, so adjusting {right pot} this potentiometer will boost/cut the
audio signal from the
2WIRE REMOTE PHONE
and PORT2 RX on the
524
.
5.
Once the [2W-4W BRIDGE] has been established, the
2WIRE REMOTE PHONE
can contact
terminals connected in the 4wire network. The DTMF
“touch tones” get converted to SS4
signaling tones (2.4/2.6KHz) by the
524
and broadcasted to the 4w circuit on PORTS 1,2,3,4.
Remember that the number
“1” is a reset. Always good to proceed any contact with a “1” which
enhances that the phones on the 4wire circuit have been initialized properly before accepting
the station command to follow. A successful station transmission and reception is followed in
the handset receiver by hearing two confirmation tones {Okphone brand terminals}.
224 2WIRE REMOTE INTERFACE
1.
The
MODEL 224 2WIRE REMOTE
Interface senses line current being seized by the
524
and
doesn
’t require any DTMF dialing from the
524
before ringing the 2wire remote phone.
2.
The
MODEL 224 2WIRE REMOTE
Interface should NOT be connected to the CO. It is meant to
be used as an interface between the
524
and a 2wire phone or CONSOLE, since it provides
DC battery bias, dial tone, and ringing.
3.
Practical max length of connections should be 1000 FT.