Dual-Port Serial Chassis

The J2300 Dual-Port Serial chassis has two Fast Ethernet LAN ports and two serial WAN ports as shown in Figure 15.

The Dual-Port Serial chassis provides the following key features:

• Onboard network processor
• Autoselection of operation modes based on data terminal equipment (DTE) or data communication equipment (DCE) cables
• Local and remote loopback diagnostics
• Configurable clock rate for the transmit (Tx) clock and receive (Rx) clock

For pinouts of cable connectors for the network ports, see Network Cable Specifications and Connector Pinouts.

For alarms, see the configuring and monitoring alarms information in the J-series Services Router Administration Guide.

Table 17 describes the meaning of the LEDs for a Fast Ethernet port, and Table 18 describes the meaning of the status LED for a serial port.

Table 17: LEDs for Fast Ethernet LAN Ports

Table 18: Status LED for Serial Ports