Chapter 4: Connecting External Equipment (Optional)61You need to enable the modem dial-in support to take advantage of thisfeature, see Configuring the Serial Port (on page 135).Connecting an External BeeperThe EMX supports the use of an external beeper for audio alarms.External beepers that are supported include but may not be limited to thefollowing: Mallory Sonalert MODEL SNP2RAfter having an external beeper connected, you can create event rulesfor the EMX to switch on or off the external beeper when specific eventsoccur. See Creating an Event Rule (on page 188).To connect an external beeper:1. Connect a standard network patch cable to the FEATURE port of theEMX.2. Plug the other end of the cable into the external beeper's RJ-45socket.The beeper can be located at a distance up to 330 feet (100 m) awayfrom the EMX.Connecting a Schroff LHX/SHX Heat ExchangerTo remotely monitor and administer the Schroff ® LHX-20, LHX-40 andSHX-30 heat exchangers through the EMX device, connect the heatexchanger to the EMX.You can connect as many LHX-20 or LHX-40 heat exchangers to yourEMX device as there are RS-485 ports or Feature ports on your EMXmodel.Note that the SHX-30 requires an adapter cable to connect to theRS-485 port on the EMX. Contact Schroff to purchase this cable.For more information on the LHX or SHX heat exchanger, see the userdocumentation accompanying that product.To connect an LHX-20 or LHX-40 heat exchanger:1. Plug one end of a standard Category 5e/6 UTP cable into theRS-485 port on the Schroff LHX heat exchanger.2. Plug the other end of the cable into one of available RS-485 ports onyour EMX.
