Pub. 42004-438M
300 Series Emergency Telephone Manual
Page 29 of 50
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-438M.docx
04/19
Auto-Answer
Factory Setting
: Auto-answer feature enabled
The auto-answer feature enables or disables the automatic answering of incoming calls. This allows
TMA to monitor the health of the telephone via polling with SMART operation enabled. The telephone
automatically answers the call and attempts to communicate with TMA when the auto-answer feature is
enabled. The telephone automatically transitions to a standard two-way communication if the caller is not
TMA.
•
Enable
: jumper
J14
in position
EN
•
Disable
: jumper
J14
in position DIS (Do not use this setting except under the direction of GAI-
Tronics personnel.)
N
OTE
:
The auto-answer feature must be enabled to allow the GAI-Tronics TMA PC to contact the
telephone or to allow remote touch tone programming.
Polarity
Factory Setting
: Non-polarity sensitive
The telephone can be configured as polarity or non-polarity sensitive. The telephone operates regardless
of tip and ring polarity when configured for non-polarity. The telephone will only operate when the
telephone line’s positive terminal is connected to the tip terminal when configured for polarity. Use the
polarity sensitive setting to allow a line voltage reversal disconnect signal to disconnect the call.
•
Non-polarity Sensitive
: jumper
J6
in position
NON
•
Polarity Sensitive
: jumper
J6
in position POL
DTMF Gain Select
Factory Setting
: Low gain selected.
Two gain selections are available in the DTMF detection circuit. The low gain setting is recommended
for most installations. The high gain setting may be necessary if the telephone is not responding to
manual or TMA-generated DTMF commands.
•
Low Gain Selected
: jumper
J17
in position
LO
•
High Gain Selected: jumper J17 in position HI
Password Enable/Disable
Factory Setting
: Password enabled
This telephone can be configured to enable or disable the password protection for programming (Standard
Mode only). This can be useful when initially programming the telephones.
•
In most installations
: jumper
J9
in position
EN
•
Password Disabled
: jumper
J9
in position DIS
