Ethernet Port

The IC-3121 provides a Gigabit Ethernet port. The Ethernet port provides a connection between the IC-3121, a network, and other Ethernet devices. The IC-3121 automatically detects the speed of the connection and configures itself accordingly.

A CAT 5e or CAT 6 1000Base-T Ethernet cable is required to achieve 1,000 Mbps (Gigabit) Ethernet performance. CAT 5 Ethernet cables are not guaranteed to meet the necessary requirements. While CAT 5 cables may appear to work at 1,000 Mbps, CAT 5 cables can cause bit errors, resulting in degraded or unreliable network performance.

(Windows only) The network Ethernet port provides Wake-on-LAN functionality from the power off state when associated with the Intel® driver. Wake-on-LAN must be enabled in the Power Management tab of the Intel I210 Gigabit Network Connection Properties dialog for the primary Ethernet port in Device Manager. The NI GigE Vision driver (NI-GEV) does not support Wake-on-LAN.

Figure 4. Ethernet Port Pin Locations

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Table 2. Ethernet Port Pin Descriptions
Pin Fast Ethernet (100 Mbps) Gigabit Ethernet
MDI MDI-X
1 TX+ BI_DA+ BI_DB+
2 TX- BI_DA- BI_DB-
3 RX+ BI_DB+ BI_DA+
4 No Connect BI_DC+ BI_DD-
5 No Connect BI_DC- BI_DD-
6 RX- BI_DB- BI_DA-
7 No Connect BI_DD+ BI_DC+
8 No Connect BI_DD- BI_DC-