GAI-Tronics 227-005 SMART Auto-Dial Handset Telephones - Manual (Page 21)

Pub. 42004-443C
SMART A UTO -D IAL H ANDSET T ELEPHONES P AGE
19 of 31
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02/13
Setup
Hardware Configuration
The hardware configuration options are explained in detail in the following sections and the necessary
jumper settings are identified to enable or disable each option. We recommend reading the following
sections, recording the desired parameters, and then making the necessary changes. We also recommend
that you make a record of your settings. The following options are controlled by specific hardware
configurations. See Figure 13 on page 23 for the jumper locations.
Auto-answer Configuration
Factory Setting: Auto-answer feature enabled
The Auto-answer feature enables or disables the automatic answering of an incoming call, which allows
TMA to monitor the health of this phone via polling with SMART operation enabled. When the Auto-
answer feature is enabled, the phone automatically answers the call and attempts to communicate with
TMA. If the caller is not TMA, the telephone automatically transitions to a standard two-way
communication.
Enable: J14 jumper in position EN.
Disable: J14 jumper in position DIS (Use this setting only if “call-in” data collection operation is
desired.)
N OTE : The Auto-answer feature must be enabled to allow the GAI-Tronics’ Telephone Management
Application PC to contact the telephone or to allow remote Touch Tone programming.
Polarity Configuration
Factory Setting: Non-polarity sensitive
This telephone can be configured to be polarity or non-polarity sensitive. With the non-polarized setting,
the telephone operates regardless of tip and ring polarity. With the polarized setting, the telephone only
operates with the telephone line’s positive terminal connected to the tip. Use the Polarity Sensitive
setting to allow a line voltage reversal disconnect signal to disconnect the call.
Non-polarity Sensitive: J6 jumper in position NON.
Polarity Sensitive: J6 jumper on in position POL.
DTMF Gain Select Configuration
Factory Setting: Low Gain selected.
Two gain selections are available in the DTMF detection circuit. In most installations, the low gain
setting is recommended. The high gain setting may be necessary if the telephone is not responding to
manual or TMA-generated DTMF commands.
Low Gain Selected: J17 jumper in position LO.
High Gain Selected: J17 jumper in position HI.
Password Enable Configuration
Factory Setting: Password Enabled (position EN)
Jumper J9 is required to be in the factory set position. Do not remove the jumper from the PCBA.