12 Installation and Operation
TIF-2000A
Password Required
Turning on the password required option sets the unit so that when a call is automatically answered, the user must enter a password
via DTMF before the unit allows communications. The password numeric sequence and length are determined by the settings of
intercom DIP switch S203.
To
turn on the password required option
, do the following:
>
Place
switch 3
in the down position.
To
turn off the password required options
, do the following:
>
Place
switch 3
in the up position.
Intercom Port Address
Switches 4 to 7 determine the address of the unit. The port address is expressed in binary with switch 4 being the
LSB
(Least
Significant Bit) and switch 7 being the
MSB
(Most Significant Bit). To turn on (set bit to 1), place the desired switch in the down
position. To turn off (set bit to 0), place the desired switch in the up position. ADAM and Zeus systems use a 1-8 address scheme
for their ports (e.g., ports 1-8 have addresses 1-8, ports 9-16 have addresses 1-8, etc.).
To
set the address for ADAM or Zeus systems
, do the following:
1.
Determine the
port number
used for the TIF2000A.
2.
Locate the
port number
and its corresponding
address
3.
Determine the
DIP switch settings
by looking up the address determined in the previous step in Table 2 on page 13.
4.
Set the
DIP switches
on the back of the unit.
Full Duplex Mode
Switch 8 (S201) controls the method by which full-duplex operation is implemented in the unit. This switch only works if full-
duplex mode is set via internal DIP switch S202, switch 7. (Factory default setting for switch 7 is off, Full-Duplex Mode.) If switch
8 is in the up position, then the unit is forced into full-duplex mode all the time. If switch 8 is in the down position, then the unit is
forced into full-duplex mode only when audio is present.
When using full-duplex mode, users may hear an increased amount of echo on the line. This may be more pronounced when the
TIF2000A is forced into full-duplex mode all of the time (switch 8 up) rather than only when audio is present (switch 8 down).