ADTRAN TRACER 4106 Plan A System Manual

Also see for TRACER 4106: Quick reference guide Quick reference guide

TRACER 4106/4206 System Manual Section 3 Engineering Guidelines612804206L2-1A © 2004 ADTRAN, Inc. 31Alarm Contacts (Plug-In Terminal Block)An RF link down condition is indicated with both normally open (NO) and normally closed (NC) alarmcontacts on the rear panel of the TRACER 4106/4206 system. In normal operation, the NC contact iselectrically connected to the common contact (COM) and the NO contact is isolated. When the RF linkdrops, the NC contact becomes isolated and the NO is electrically connected to COM. This allows RFdown conditions to be reported to external alarm monitoring systems.DC Power Connection (Plug-In Terminal Block)The TRACER 4106/4206 can operate from a supply between 21 and 60 VDC, with either polarityreferenced to ground, and consumes less than 20 Watts (W). Power supplies should be able to provide up to30 W at the selected voltage. Current required (in Amps) is determined by dividing the power consumed(in Watts) by the applied voltage (in Volts). For example, at 48 V, TRACER 4106/4206 would drawapproximately 0.417 A (20 W/48 V).The + terminal of the DC power connection must be connected to the most positive voltage rail, while the– terminal must be connected to the most negative voltage rail. For example, a +24 V source should bedelivered to the TRACER 4106/4206 by connecting +24 V to the + terminal of the TRACER 4106/4206power terminal block and ground (the most negative voltage) to the TRACER 4106/4206 – terminal.Alternately, a -48V supply should be delivered to the TRACER 4106/4206 by connecting ground (the mostpositive voltage) to the + terminal of the TRACER 4106/4206 power terminal block and -48 V to the –terminal.FuseThe fuse holder, accessible from the rear panel of the TRACER 4106/4206, accepts a generic 1A, 250 V,2-inch slow-blo fuse.Antenna Interface (N-Type connector)The ANTENNA interface (N-Type connector) connects to the customer-supplied antenna using standardantenna feedline cable. When determining the cable specifications for your application, refer to Section 2,Microwave Path Engineering Basics (System Losses (L) on page 18) for a discussion on cable length andloss factors.Table 7. Alarm Contact Connector PinoutPIN NAME DESCRIPTION1 COM Common Contact2 NO Normally-Open Contact3 NC Normally-Closed ContactIf the power supply voltages are incorrectly connected to the TRACER 4106/4206system, the fuse will blow.Table 8. DC Power Connector PinoutPIN NAME + Voltage – Voltage1 - Ground (GND) – Voltage2 + + Voltage Ground (GND)