Connecting to LAN with Port-Pair Redundancy
The LAN ports are provided on the CRMX and SWX LAN Expansion modules (see CRMX Module and Section SWX LAN Expansion Module, respectively). These LAN ports can operate in pairs (Ethernet Groups) to provide 1+1 port redundancy. In each pair, one port serves as the active port while the other as standby. When the active port fails, the device switches to the standby port. By default, the Ethernet ports are grouped into pairs, as shown in the following figure. However, you can change this port assignment, including assigning only a single port to an Ethernet Group. For more information, refer to the User's Manual.
Default Ethernet Groups and Web Interface String Names
| ● | The SWX module is a separate orderable item. |
| ● | If your SWX module has different port labels (i.e., roman numerals) compared to those shown in the previous figure, see Ports Description for the corresponding port numbering. |
Ethernet port interface cabling must be routed only indoors and must not exit the building.
(French) Avertissement: Le câblage de l’interface du port Ethernet doit être acheminé uniquement en intérieur et ne doit pas sortir du bâtiment.
Cabling specifications:
| ■ | Cable: Category 5e or Category 6 shielded twisted pair (STP) straight-through |
| ■ | Connector: RJ-45 |
| ■ | Connector Pinouts: |
RJ-45 Connector Pinouts for LAN
| ➢ | To connect to the LAN: |
| 1. | Connect one end of a straight-through RJ-45 Ethernet Cat 5/5e cable to the active LAN port on the CRMX module or optional SWX module. |
Connecting to LAN
| 2. | Connect the other end of the cable to the LAN. |
| 3. | For 1+1 LAN protection, repeat steps 1 and 2 for the standby port, but connect it to another network (in the same subnet). |
If you are implementing LAN port-pair redundancy, make sure that each port in the Ethernet Group is connected to a different network (in the same subnet).