7
6
7.
R
ADIO
P
USH
-T
O
-T
ALK
B
UTTON
: If the Motorola GP-300 radio is connected to
the beltpack, press the PTT to transmit via the radio. (After pressing PTT,
wait for the tone to stop.)
Note
: If the Talk button is in Latched Mode, pressing PTT will
simultaneously transmit your voice via the radio and Intercom system.
8.
R
ADIO
C
ONNECTOR
: This connector accepts the five-pin cable supplied to
connect the belt pack to the GP-300 radio.
9.
I
NTERCOM
C
HANNEL
C
ONNECTORS
: Intercom channels are connected via a 6-
pin connectors (one male and one female).
Local Power Input
Normally the NFL-2002 is powered from the intercom system and will turn
on with the intercom system. The NFL-2002 belt pack may also be
powered from an optional power supply (21-30 VDC; 100 mA) connected
between pin 2 (+) and pin 1 (-) of the intercom channel connector.
Changing Modes of Operation:
Perform the following steps to change the mode of operation.
1.
Both the Talk and Call indicators should be OFF and the headset should
be connected.
2.
Press and hold the Talk key, then press and hold the Call key, then
release both keys. The Call indicator should now glow red. (The number
of beeps heard in the headset indicates the current mode of operation.)
3.
Press the Call key to change to the next mode of operation. Each press
of the Call key will cause the NFL-2002 to change to the next mode of
operation.
4.
When the desired mode is reached, press the Talk key to select that mode
and exit the mode changing function. (Beeps will be heard in the headset
when the mode changing function is exited. The number of beeps heard
indicates the selected mode of operation.)
NOTE:
Each time the intercom system power is turned on, the beltpack
will reset to the default mode of operation (Mode 2).
M
ODE
(
BEEPS
)
M
IC
K
ILL
A
UDIBLE
C
ALL
A
LERT
1
d
e
l
b
a
s
i
D
d
e
l
b
a
s
i
D
)
t
l
u
a
f
e
D
(
2
d
e
l
b
a
n
E
d
e
l
b
a
s
i
D
3
d
e
l
b
a
s
i
D
d
e
l
b
a
n
E
4
d
e
l
b
a
n
E
d
e
l
b
a
n
E
Table 1. Operating Modes
OPERATING MODES
The microprocessor within the NFL-2002 controls four modes of
operation that affect the Microphone Kill and Audible Call Alert features
(as shown in Table 1).
Internal Switches, Jumpers and Adjustments
There are several internal switches, jumpers, and adjustments that affect
operation. These are described below. To gain access to the switches, jumpers
and the adjustments, disconnect all headsets, power and line connections.
Remove two screws from the top of each side and two screws from the bottom
of each side. Switch, jumper and
adjustment locations are shown in Figure 2.
Figure 2. Internal Switches, Jumpers and Adjustments
SW1
UBL
BAL
SW5
D
R145
R13
JP3
SW4
D
R156
U7
JP2
JP1
SW3
