User`s guide

INSTALLATION
6 RS232 (XSRING-2220 and XSRING-2230)
The RS232 data rate can be tuned from 1200 to 115200 b/s with parity
(even / odd) or no parity.
The data terminal must be less than 10 meters far from the modem.
Cables can be provided to connect the product to DTE and DCE as
follows :
RS232 cables (L=1m)
Code User connector Cable function
CAB592 SubD 9 male To connect a DCE to the XSRING
CAB593 SubD 9 female To connect a DTE to the XSRING
CAB609 wires To connect a device providing a specific
connector
7 RS485 (XSRING-2230)
The RS485 serial interface is
provided on the front panel 2 pins
screw-block.
Polarisation resistors
1 Kohm bus polarisation resistors
are included inside the product.
-
1K 1K
+
SW1
B(+) A(-)RS485
RS485 line adaptation
For a several meters long connection over the RS485 local interface, it is
not necessary to adapt the RS485 line. For a longer distance, connect a
120 Ohm resistor at each end of the line.
Failsafe ring SHDSL switch User’s guide ref 9014809-03
Page 17