User's Manual

117MN024-010
TPRF
Whichever baud rate you choose, remember that:
• the same RS485 connection speed has to be set up on all connected devices (TPRN sub-
racks or TSUN remote supervision unit);
• the baud-rate which is selected through the dip-switches 6 and 7 set the connection
speed for both the RS485 port and the RS232 port.
Dip-switch 8 is used to match the impedance of a terminal TPRF31 node to the impedance
of the transmission line being used. When the TPRF31 is the fi rst or the last node of a subrack-
chain, Dip-switch 8 can be set to ON if the length of the RS485 cables in the chain is such to
cause a signifi cant propagation delay, compared to the bit width (and therefore to the baud
rate previously set).
In no such case, Dip-switch 8 can be set to OFF.
Address
(Dec)
Address
(Bin)
Dip-switch 1 Dip-switch 2 Dip-switch 3 Dip-switch 4 Dip-switch 5
1 00001 ON OFF OFF OFF OFF
2 00010 OFF ON OFF OFF OFF
3 00011 ON ON OFF OFF OFF
4 00100 OFF OFF ON OFF OFF
5 00101 ON OFF ON OFF OFF
6 00110 OFF ON ON OFF OFF
7 00111 ON ON ON OFF OFF
8 01000 OFF OFF OFF ON OFF
9 01001 ON OFF OFF ON OFF
10 01010 OFF ON OFF ON OFF
11 01011 ON ON OFF ON OFF
12 01100 OFF OFF ON ON OFF
13 01101 ON OFF ON ON OFF
14 01110 OFF ON ON ON OFF
Reserved 01111 ON ON ON ON OFF
Reserved 10000 ON OFF OFF OFF ON
17 10001 ON OFF OFF OFF ON
18 10010 OFF ON OFF OFF ON
19 10011 ON ON OFF OFF ON
20 10100 OFF OFF ON OFF ON
21 10101 ON OFF ON OFF ON
22 10110 OFF ON ON OFF ON
23 10111 ON ON ON OFF ON
24 11000 OFF OFF OFF ON ON
25 11001 ON OFF OFF ON ON
26 11010 OFF ON OFF ON ON
27 11011 ON ON OFF ON ON
28 11100 OFF OFF ON ON ON
29 11101 ON OFF ON ON ON
30 11110 OFF ON ON ON ON
Reserved 11111 ON ON ON ON ON
Table 4.2.3 : Dip-switches address settings