CONNECTIONS All connections are made through the 50-pin amphenol connector on the back panelTA 750/850/1500.ELECTRICAL CODE COMPLIANCEThe Quad FXS and Quad FXO are to be installed in restricted access locations and in equipmentwith a Type “B” or “E” installation code.Code Input OutputIC A –TC – XPC C CAPPLICATIONSThis device complies with Part 15 of the FCC rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference, and (2) this device must acceptany interference received, including interference that may cause undesired operation.Changes or modifications not expressly approved by ADTRAN could void the user’s authority tooperate this equipment.PRICING AND AVAILABILTY 800.827.0807TECHNICAL SUPPORT 888-4ADTRANRETURN FOR REPAIR 256.963.8722www.adtran.comTOTAL ACCESS 750 QUAD FXS/FXOMODES OF OPERATIONNote: Signaling states are provisioned through the BCU.FXS FXS Loop Start (default) FXS Ground Start TR-08 Single Party TR-08 Universal Voice Grade DPO Tandem (E & M)FXO FXO Loop Start (default) FXO Ground Start DPTATTENUATION LEVELS0 dB to -9 dBFXS Short loop default: -6 dB Transmit, –3 dB Receive Long loop default: -3 dB Transmit, –3 dB ReceiveFXO Default 0 dB Transmit, 0 dB ReceiveIMPEDANCE SETTINGSFXS600 Ω900 Ω600 Ω + 2.16 μF (short loop default)900 Ω + 2.16 μF (long loop default)FXO900 Ω + 2.16 μFWARRANTYWarranty for Carrier Networks products manufactured by ADTRAN and supplied underBuyer's order for use in the U.S. is ten (10) years. For a complete copy of ADTRAN's U.S.Carrier Networks Equipment Warranty: (877) 457-5007, Document 414.RouterSwitch GR303 AccessConcentratorData SwitchDCSSwitchSwitchDS1DS1TDMGR303

ADTRAN /FXS/FXO 850 Quad Job Aid