19
Pin 4
Pin 5 Ring or Tip
Pin 6 reserved
Tip and Ring has no polarity.
Make sure that the length of any cable runs does not exceed 400 metres using 24 AWG wire.
Connecting to hybrid station port
The system is equipped with six hybrid station ports which can accommodate keysets or single line
telephones. Each ports should be selected for use as a keyset or single line telephone. Any of these
ports may be used for a single line telephone station and its connection method is the same as above.
Before cabling, the related DIP switches should be set as follows:
The selection of each hybrid station requires you to move four levers at one DIP switch.
3rd Station S1 DIP
4th Station S2 DIP
5th Station S3 DIP
6th Station S4 DIP
7th Station S5 DIP
8th Station S6 DIP
Each DIP switch comprises four levers which should be set to “S” positions for single line
telephone assignment. These are marked on the board.
The switch location is shown in Figure 4.
Internal Music Source
NX-308 system is equipped with a melody chip containing six melodies which run continuously:
“La Reine Deo Saba”
“For Elise”
“Santa Lucia”
“Maiden Pray”
“Music Box Dancer”
“Moonlight on the Colorado”
The system has two music sources which may be selected by the related shunt pin, J37, on the base
board (Figure 4). Near shunt pin J37 are two identifying marks INT and EXT:
INT position - Selection for Internal Music Source
EXT position - Selection for External Music Source
Volume levels are adjusted by the variable resistor, RV1, near the shunt pin.
Note: When the customer does not want internal or external music provided, disconnect the external
music source and select external music by moving the shunt pin.
External Music Source Connections
NX - 308 system is equipped with an internal melody chip to provide music on hold and background
music through the keysets. However, an external music source such as a radio or recorder can be
connected to the system.
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