Nortel Networks BCM50 - Manual (Page 112)

112 Chapter 9 Connecting the cables to the BCM50 system
NN40020-302
The music source jack is on the front of the main unit. If you use the music source jack to connect
the music source, do not connect a music source to the music source pair on the RJ-21 telephony
connector.
To connect the music source using the music source jack
1 Connect the miniature jack of the music source output (3.5 mm mono audio jack) to the music
source input on the BCM50 main unit. See the figure
Music source jack on page 112.
Figure 52 Music source jack
2 Adjust the volume of the music source to an appropriate level by placing a call and putting it
on hold, and then adjust the volume at the music source.
3 Select the appropriate option for your system:
• If you add more auxiliary equipment, see Connecting an external paging system on page
110 or Connecting an auxiliary ringer on page 110.
• When you finish adding auxiliary equipment, proceed to Next step on page 114.
To connect the music source using the RJ-21 telephony
connector
1 Connect the music source output to the music source input on the RJ-21 telephony connector.
To determine which pair of wires to use for the music source input, see
RJ-21 telephony
connector wiring chart on page 203.
2 Adjust the volume of the music source to an appropriate level by placing a call and putting it
on hold, and then adjust the volume at the music source.
Tip: You can adjust the background music volume at every telephone.
Note: If you use the RJ-21 telephony connector to connect the music
source, do not connect a music source to the music source jack on the
front of the main unit.
Tip
Sleeve
Music jack
Tip: Music signal
Ring: No connection
Sleeve: Ground
Music source
input
BCM50
(3.5 mm mono audio jack)