P
UB
42004-438A
300
S
ERIES
E
MERGENCY
T
ELEPHONE
M
ANUAL
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AGE
21 of 44
f:\standard ioms - current release\42004 instr. manuals\42004-438a.doc
02/11
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. Reading each section and recording the
selected options prior to making the necessary changes is recommended. Create a record of your settings
using Table 3 on page 22. See Figure 23 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. 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 on pins 2 and 3.
Disable
: J14 jumper on pins 1 and 2 (Do not use this setting except under the direction of GAI-Tronics
personnel.)
N
OTE
:
The Auto-answer feature must be enabled during remote programming, and to allow the
GAI-Tronics Telephone Management Application PC to contact the phone.
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 on pins 2 and 3.
Polarity Sensitive
: J6 jumper on pins 1 and 2.
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.
Low Gain Selected
: J17 jumper on pins 1 and 2.
High Gain Selected
: J17 jumper on pins 2 and 3.
