Installation
Page 20
SW1-5 − Receiver Dynamic Range (high- & low-speed modes)
SW1-5 ON = −10 to −43 dBm
OFF = +3 to −30 dBm
For a low receive signal level, set SW1-5 to ON (−43 dBm ). For short
distances or to select a strong receive signal, set SW1-5 to OFF.
SW1-6 and SW1-7 − RTS-CTS Delay (low-speed mode only)
Switches SW1-6 and SW1-7 determine the duration of the RTS-CTS
delay. Table 2-5 shows the RTS-CTS delays you can select using these
switches.
Table 2-5. RTS-CTS Delays
SW1-6 and SW1-7 Switch Settings
RTS-CTS Delay SW1-6 SW1-7
8 ms. delay OFF OFF
33 ms. Delay OFF ON
59 ms. Delay ON OFF
219 ms. delay ON ON
SW1-8 − Anti-streaming (high- & low-speed modes)
SW1-8 ON = Anti-streaming active
OFF = Anti-stream inactive
Typically, anti-streaming is used in multi-point applications to prevent
a malfunctioning slave modem from occupying the line indefinitely.
When anti-streaming is active, the modem can transmit data for a
maximum of 27 seconds before the transmitter turns off automatically.
The modem then looks for an ON-to-OFF Request To Send (RTS)
transition before proceeding with normal operation. Anti-streaming can
be selected in either high-speed or low-speed mode.