Nevion SL-3GHD128128 - Manual (Page 10)

SL-3GHD128128 Rev. D
nevion.com | 10
There is a switch on the right hand side of the power supply module that selects
mains voltage. The mains voltage can be either 110VAC or 230VAC. This
switch must be set in the correct position, depending on the mains voltage on
the router’s site.
Failing to select correct AC mains voltage properly may damage the
Power Supply Unit.
2.5.2 Serial port pinout
The DB9F connectors for the serial port(s) of the router have the following pin-out:
Pin # RS-232 mode RS-422 mode
1 Not in use Not in use
2 Tx Tx -
3 Rx Rx +
4 Not in use Not in use
5 GND GND
6 GND GND
7 RTS Tx +
8 CTS Rx -
9 Do Not Connect! Do Not Connect!
Note that if the standard RS-232 cable specification (DCE) is followed:
- a cable with Male+Male or Female+Female connectors at the cable ends is
used for Rx/Tx crossed connection, and
- a cable with Male+Female connectors at the cable ends is used for a straight
through connection.