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Configuring the Modem
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13
Table 2-1. Jumper Settings
Jumper Function Settings See Page…
S1
Carrier Detect control
-33 dBm
-
43 dBm
14
S2
Transmit level
0dBm
-2 dBm
-4 dBm
-6 dBm
-8 dBm
-10 dBm
-12 dBm
-14 dBm
14
S3
2-wire/4-wire mode 2-wire
4-wire
15
S4
Call turnaround squelch Enabled
Disabled
15
S5
Transmit carrier
Control
Constant
16
S6
Local copy Enabled
Disabled
16
S8
Signal and Earth ground Connected
Separate
16
S9
RTS-CTS delay
8 ms
33 ms
59 ms
219 ms
17
S10
Carrier Detect delay
6 ms
23 ms
17
S11
Turnaround squelch time
(Enabled by jumper
S4
)
8 ms
159 ms
17
S12
Soft Carrier turn off None
8 ms
26 ms
18
S13
Anti-streaming
None
4 seconds
7.6 seconds
14 seconds
28 seconds
56 seconds
18
S14
and
S15
Self Test or test pattern
(Tx and Rx pattern speed)
1 bps
18 bps
37 bps
75 bps
150 bps
19