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Table 1. RX Coupler PWB Jumpers
Link
Setting
J1
ON *
OFF
J2, J3
J2
J3
* OFF
OFF*
OFF
ON
ON
OFF
ON
ON
J4, J5
J4
J5
OFF
OFF
ON
OFF
OFF
ON
* ON
ON *
J6
ON
OFF *
J7
ON *
OFF
J8
ON
OFF *
J9, J10,
and J11
J9
J10
J11
OFF OFF OFF
OFF OFF
ON
OFF
ON
OFF
OFF
ON
ON
* ON
OFF OFF*
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
*
Indicates factory setting (default).
Telecopier 7032 / 7033 Service Manual
Description
Line hold resistance of 115 ohms
Line current limiting circuit
selected
4 wire configuration
N/A
N/A
3 wire configuration
Ring sensitivity at 6 VRMS
Ring sensitivity at 11 VRMS
Ring sensitivity at 16 VRMS
Ring sensitivity at 21 VRMS
Ring detect capacitance of 1 uF
Ring detect capacitance of 0.5 uF
Provides 0.5 dB attenuation for
transmit level
Provides 0 dB gain
Additional 4 dB attenuation for
receive signal
Provides 0 dB attenuation
Resistance value of pulsed dial
high voltage limitation circuit:
open circuit
100 ohms
200 ohms
67 ohms
600 ohms
86 ohms
150 ohms
60 ohms
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Table 1. RX Coupler PWB Jumpers (continued)
Link
Setting
J12
ON
OFF *
J13, J14,
and J15
J13
J14
OFF OFF OFF
OFF
ON
* ON
OFF OFF*
ON
OFF
ON
ON
*
Indicates factory setting (default).
Table 2. RX Coupler PWB Switches
Switch
ATT1
Transmit power level
Marking:
Description:
Default Setting:
NOTE:
For transmit voltage measurements and
settings refer to Section 4 page 4-48.
SW1
Bit1 - Service mode
OFF=SR mode disabled, ON=SR mode enabled
Default setting: OFF
Bit2 - Remote diagnostics
OFF=Remote diagnostics disabled, ON= Remote
diagnostics enabled
Default setting: OFF
8/91
6-3
Description
Selection of VR1 for pulsed dial
high voltage limitation circuit
Capacitance value of pulsed dial
J15
high voltage limitation circuit:
open circuit
OFF
0.5 uF
1 uF
ON
2 uF
ON
0 uF
Description
1
2
4
–1 dBm
–2 dBm
–4 dBm
ON
OFF
OFF
8
–8 dBm
ON
6.1.2
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