Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

Contents

Small Office Remote Access Switch 37H ARDWARE O VERVIEWSystem PlatformsCYBER SWITCH BACK PANELThe back panel provides connectors for WAN and LAN access, as well an RS232 port for anadministration console. It also contains termination switches, a DC power input connector and aReset button.The two connectors available for LAN access are the 10Base-T (RJ-45 Ethernet connector) or theoptional 10Base-2 (Ethernet BNC connector). Only one of the two ports may be activated at a time.If you attempt to use both, the system hardware automatically defaults to the 10Base-T port.The back panel also provides WAN access via an RJ-45 ISDN interface connector for a BRI line. Thisinterface supports 2B + D channels, with each of the two B channels capable of providing either56Kbps or 64Kbps digital transmission.To the right of the BRI connector is a pair of termination switches for multipoint connections. Theseswitches are labeled Term. These DIP switches control the terminating resistors for the Basic RateInterface.You must set both switches in the same direction or improper operation may result. The smallarrow points in the direction of the on position. When the switches are on, the resistors for theconnector are providing termination for the BRI line. Conversely, when the switches are off, theresistors for the connector are not providing termination for the BRI line.On an S/T interface, it is important to have the termination switches set correctly. On a U interface,the circuitry is intended to operate properly no matter which setting is used; however, optimumoperation is achieved with the switches off.The Console connector (an RS232 connector) provides an asynchronous connection foradministration console management, or PPP-Async data transfer.The power input comes from the provided external power supply, which attaches to the DC Powerconnector. Voltages required are +5 volts DC and +12 volts DC.Note that there is no POWER switch on the back panel. The system has been designed to runcontinuously in order to support the Plain Old Telephone Service (POTS) interface. In the event thatthe CyberSWITCH is accidently unplugged, you must press Reset once power is reconnected. Inthe event you must disconnect the unit from its power supply, unplug the power cord from the wall(the AC connection) first. Do not remove the DC power input (attached to the CyberSWITCH)before disconnecting at the wall.The Reset button is a small, recessed button on the right side of the back panel. To reset the unit,use a pen or a sharp pencil to depress the button.The RJ-11 connectors for the dual Plain Old Telephone Service (POTS) interface, are identified bytelephone icons, and are labeled 1 and 2.