Dell PowerConnect 8100 Getting Started Guide - Page 10

Quad-Port SFP Uplink Fixed Ports The PC8164 and PC8164F models feature two fixed QSFP ports, each providing the following features: • Four 10G ports with quad-breakout/QBO cable • One 40G port supporting CR4, SR4 and LR4 transceivers • Front panel port status LEDs The QSFP connections can be used for stacking. Stacking is supported at distances of up to 100M. NOTE: The QSFP modules can be used only for the PowerConnect 81xxseries switches. Expansion Slot The 80 Gbps expansion slot supports the following modules: • SFP+ (four 10G ports) • 10G Base-T (four 10G ports) • QSFP+ (may be configured as two 40G ports or up to 8 10G ports) The modules are sold separately. UART Interface The UART (Universal Asynchronous Receiver Transmitter) port is modeled after the industry standard 16550 UART devices. The UART port provides serial communication capabilities, which allows communication with the model or other external devices using RS-232 protocol. A serial port provides a direct connection to the switch and allows you to access the CLI from a console terminal connected to the port through the provided serial cable (with RJ45 YOST to female DB-9 connectors). The UART port is separately configurable and can be run as an asynchronous link from 1200 baud to 4M baud. 8 Hardware Overview