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Bausch Datacom – InduBox PSTN III – Reference Manual V1.0c
6.
Jumper Settings
The InduBox PSTN III modem has 5 jumpers. The functions of the jumpers will be
described in the paragraphs below.
Jumper
Position
Description
JP2
“dis”(able)
“en”(able)
RS-485 disabled
RS-485 enabled
JP1
“Term” Open
“Term” Closed
no 120 ohm termination between A and B
120 ohm termination between A and B
JP3
“Delay” Open
“Delay” Closed
20 ms delay
<9600 bps
2 ms delay
=>9600 bps
JP5
No Jumper
“Meter”
“5V”
RS-232 pin1 : no connection
RS-232 pin1 : '+V' 5~25 Vdc in (reset function)
RS-232 pin1 : +5V' out
JP4
No jumper
“Meter”
“5V”
RS-485 pin1 : no connection
RS-485 pin1 : '+V' 5~25 Vdc in (reset function)
RS-485 pin1 : +5V' out
2013 / 04 / 02
17
InduBox PSTN III V1.0c E
JP5 JP2 JP1 JP4
Power Supply
Socket
Modem
Module
MAINS
RS-232
TEL
JP3
en
5V
Meter
dis
5V
Meter
Содержание InduBox PSTN III
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