Pub. 42004-404F
M
ODEL
10959-207
AND
-208
R
ACK
-M
OUNT
A
UDIO
M
ESSENGER
I
NTERFACES
P
AGE
12 of 20
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Table 8. Termination PCBA Jumper Functions
Jumper Output Position
Function
P1 TB3-5,
6
Audio bus 1
1-2
600-ohm resistor connected (ADVANCE position)
2-3 Default:
unterminated
P5 TB3-1,
2
600 ohms
1-2
600-ohm resistor connected (ADVANCE position)
2-3 Default:
unterminated
P6 TB3-3,
4
Audio bus 2
1-2
600-ohm resistor connected (ADVANCE position)
2-3 Default:
unterminated
P11 TB4-7,
8
Audio contact
1-2
Supervision resistor network, 4.7k in series, 15k in parallel
(ADVANCE position)
2-3 Default:
unsupervised
Figure 5. Termination PCBA
