Comtech EF Data DMD-2050E - Manual (Page 274)

DMD2050E Universal Satellite Modem TCP/IP Ethernet Setup
MN-DMD2050E Revision 2 F–4
F.4 Ethernet Test
F.4.1 Connecting the Modem Ethernet Cable to a Network Link
1. Connect the Network Switch (Hub) to the Modem Ethernet port (J9) using standard RJ-45 to RJ-45 10BaseT (CAT-
5) Cables as shown below.
DMD2050E Ethernet Network Connection
F.4.2 Connecting the Modem Ethernet Cable Directly to a Computer (without a
Network)
The user can directly connect to the equipment without connecting to a network. This will often
occur at remote sites where a network is not available. To connect, the user will need an
Ethernet Crossover (Null) cable. The pinout for this cable is as follows,
RJ45 Connector A RJ45 Connector B
Pin #1
Pin #3
Pin #2 Pin #6
Pin #3 Pin #1
Pin #4 Pin #4
Pin #5 Pin #5
Pin #6 Pin #2
Pin #7 Pin #7
Pin #8 Pin #8
The computer TCP/IP must be configured correctly to obtain connectivity. The following
instructions apply to Windows 2000 or XP Classic specifically.