98-9006-00_user_manual操作说明书手册

NETWORK JUNCTION BOX98-9006-00The Accu-Time PN 98-9006-00 Network Junction Box is a communication adapter and network branch point.The Network Junction Box accommodates bi-directional RS485 communication signals from Accu-TimeRS485 multi-dropped Data Collection Terminals (DCT),and RS485 communication signals from trunk wiringsources.The Network Junction Box has four(4),eight(8)pin modular jacks which can accommodate direct DCTinputs,and three(3),eight(8)pin terminal block connectors which serve as Drop terminations and networkexpanders.The RS485 communication signal termination points are all parallel on both the modular jack andterminal block connectors.The Accu-Time Network Junction Box is equipped with a terminal screw for "EarthGround"terminations.The 12-volt "DC POWER"input supports the Accu-Time(PN 17-2004-00 or 17-2004-01)power packassemblies.Depending upon the configuration of the Network Junction Box,power may be supplied to theAccu-Time DCTs via the modular jacks and/or the temminal block connectors.The Accu-Time Network Junction Box is equipped with selectable jumper connectors labeled JP1-JP4.In the"NC"option,power supplied to the"DC POWER"input is applied to the modular jack of the appropriate"DROP"connector.In the "NO"option,power from the"DC POWER"input is disabled from the appropriate"DROP"connector.(NOTE:Refer to Network Junction Box label for jumper assignments).Power applied to the "DC POWER"input is carried to pin 7 of the three terminal block connectors.To disablepower from the terminal block,omit network trunk wire on pin 7 during installation.Accu-Time recommendsthat pin 6 of the temminal block connectors always be utilized as a common power ground reference point.(NOTE:Refer to the Accu-Time Technical Support Department for recommended installation guidelines).GENERAL SPECIFICATIONSPhysical-Dimensions:1.18"H X 5.65"W X 5.46"D(3.00cmH×14.35cmW×x13.87cmD)Weight:1.0 Lbs.Environmental-⑦⑦⑦边⑦⑦边0 perating Temp:32°-110F(0°-45°C)Relative Humidity:20-90%Non-condensing5.65inOperating Parameters-②西面边立面西色Power:Passive device46in98900500.d0cAccu-Time Systems,Inc.420 Somers Road,Ellington,CT 06029 Tel(860)870-5000 Fax(860)872-1511