Applied Systems Engineering Bell-202T Manual de usuario Pagina 8

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 13
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 7
Applied Systems Engineering, Inc.
Page 4
Jumper Settings for Rack Mount (5008) Modem (Rev A)
Bold Italics indicates factory settings
Jumper Usage Notes Jumper Meaning
1-2 DSR
JP1 DTR/DSR
Uses DTR as “clear-to-send” signal, instead of CTS
Uses DSR as “request-to-send” signal instead of RTS
Normal mode (RTS/CTS) has no jumpers installed
3-4 DTR
1-2 -45 dB JP2 Receiver
gain
Sets receiver gain to –35 or –45 dB
Exactly one jumper must be installed
3-4 -35 dB
JP3 Receiver
squelch
For half duplex mode, adds 156 millisecond delay between
end of transmitted message and enabling receiver
Receiver constantly enabled if not installed
1-2 156 msec
1-2
3-4
2-wire
5-6
JP4 2W/4W
Selects 2-wire (half duplex) or 4-wire (full-duplex) operation
Exactly 2 jumpers must be installed
7-8
4-wire
JP5 Carrier
Selects switched or constant carrier
Remove jumper for switched carrier
1-2
Removed
JP6 900Hz
soft
carrier
turn-off
Installed if 900Hz-carrier turn-off is not required.
Removed if 900Hz-carrier turn-off is required.
Note: Must be installed for V.23 CCITT operation
1-2 Installed
JP7 Transmit
level
range
selection
If installed, SW1 settings interpreted as 0 to –15 dB
If removed, SW1 settings interpreted as –16 to –32 dB
1-2 Installed
3-5
JP9 Reserved
These jumpers are factory installed and must not be altered
after shipment.
4-6
Installed
Vista de pagina 7
1 2 3 4 5 6 7 8 9 10 11 12 13

Comentarios a estos manuales

Sin comentarios