Lan Connection - DPS Telecom NetGuardian 420 Hardware User Manual

7. Reinsert the fuse to power the NetGuardian. The front panel LEDs will flash RED and GREEN.
5.4

LAN Connection

The NetGuardian 420 has one 10/100 Ethernet port. If the IP connection is OK, the LNK LED will light SOLID
GREEN when the cable is connected.
Build Option: Net1/Net2 (Dual NIC)
For enhanced security, the NetGuardian 420 can be ordered with a second LAN connection and optional 4-port
switch (Net2). When ordered this way, both Net1 and Net2 have separate IP addresses and subnet mask, so you
can safely connect one port to your private company LAN and the other to the public Internet.
There is no routing between Net1 and Net2, this ensures that both connections are independent of each other. By
default, outbound data traffic from the NetGuardian will be sent over Net2. Only outbound data that is specifically
directed to Net1, usually the Company's LAN, will be sent to Net1. To use both network interfaces, be sure Net1
and Net2 are on separate Subnet Masks.
To use only one of the network interfaces, set either Net1 or Net2 to IP address being used and set the unused
network IP subnet and gateway to 255.255.255.0. Both ports are standard RJ45 ports that take standard RJ45
Ethernet cables. If the IP connection is OK, the LNK LED will light SOLID GREEN when the cable is
connected.
Build Option: 100Base-FX SFP Fiber Port on Net2
Your NetGuardian 420 can also be ordered with a 100Base-FX SFP Fiber Port on Net2 (instead of standard
LAN). The SFP ports are internally connected to the 4 port switch and Net2 meaning if this option is populated,
port 4 is inactive on the switch.
The Ne tGuardian 420 with Dual NIC and 100Base -FX SFP Fibe r Port options
RJ45 Ethernet Connection
8
7
6 Receive In– (RI–)
5
4
3 Receive In + (RI+)
2 Trans mit Out – (TO–)
1 Trans mit Out + (TO+)
Ethernet port pinout
populate d
7