Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

Contents

LED I NDICATORSOVERVIEWThe front panel of the CyberSWITCH has several LED indicators. The POWER indicator willremain lit while the unit is on. There is a series of three LAN indicators: they will light to indicatetransmissions, receptions, or good link integrity on the 10Base-T port. The bank of WAN indicatorsprovide you with the status of each WAN line.Detailed descriptions of the indicators follow.LOCAL A REA N ETWORK LED INDICATORSThe CyberSWITCH has the following LAN indicators: TX, and RX, and 10BaseT. These indicatorsconvey the state of the communication link between the system and the LAN.• 10BaseT indicates connection to a 10Base-T LAN. If there is good link integrity on the 10Base-Tport, this light shines steadily. If a connection other than 10Base-T is used (such as an AUI con-nection) or there is no link integrity, this light will not shine.• The TX indicatory flashes while the system transmits data across the LAN. Note that at least128 bytes of data must be transmitted to trigger the TX indicator.• The RX indicator flashes while the system is receiving data from another device on the LAN.WAN LED I NDICATORSThe WAN indicators provide the status of each BRI line. For each BRI line, there is a bank of fourLED indicators. The four LED indicators are labeled as follows: Sync, D-Chan, CH-1, and CH-2.• The Sync indicator identifies whether or not the most basic level of the ISDN connection (Layer1) is established. It verifies that the system is connected to the ISDN network at this BRI port.This light must be on for D-CHAN, CH-1 or CH-2 to be operational.• The D-Chan indicator signifies data link and D channel activity. If the data link successfullyinitializes, the D-Chan indicator flickers momentarily, then stays lit. When there is a a call, theD-Chan indicator flickers momentarily, stays lit, and then one of the CH indicators light up. Ifthere is a second call, the D-Chan indicator will again flicker momentarily and then the otherCH indicator will light up.