MediaPack Analog Gateways  31  MP-1288 
Hardware Installation Manual   5. Cabling the Device 
5.2  Connecting Ethernet Interfaces  
The device provides two 100/1000Base-T Gigabit Ethernet ports (RJ-45) for connecting to 
the IP network (e.g., LAN). The ports support half- and full-duplex modes, auto-negotiation, 
and straight or crossover cable detection. 
The ports can operate as a pair (Ethernet Group) to provide 1+1 port redundancy, where 
one port serves as the active port while the other as standby. When the active port fails, 
the device switches to the standby port.  
The cabling specifications and procedure for connecting the device to the LAN is as 
follows: 
  Cable: Straight-through, Category (Cat) 5, 5e or 6 cable 
  Connector: Standard RJ-45  
  Connector Pinouts: 
Table  5-1: RJ-45 Connector Pinouts for Ethernet Ports  
Pin  Signal Name 
1 
Ethernet signal pair  
2 
3 
Ethernet signal pair  
6 
4 
Ethernet signal pair  
5 
7 
Ethernet signal pair 
8 
Shield 
Chassis ground 
  To connect the Ethernet interfaces: 
1.  Connect the RJ-45 connector, at one end of a straight-through Cat 5e or Cat 6 cable, 
to  one of the Ethernet  ports  (labeled )  on the CPU  module located on the 
chassis' rear panel, as shown below: 
Figure  5-5: Connecting the LAN Ports 
 
2.  Connect the other end of the cable to your network. 
3.  For 1+1 Ethernet  port  redundancy, repeat steps 1 through  2 for the standby port. 
Make sure that you connect each port to a different network (but in the same subnet).