890 NTAK10 2.0 Mb DTI cardThe external interconnection is through a 50-pin MDF connector with aNTBK05 carrier cable A0394217.The external connection is through a 50-pin MDF connector with theNTBK05 carrier cable A0394217.CEPT interfaceFor the Conference of European Postal Communications (CEPT) interface,the connection to the external digital carrier is through the NT5K85 DTIcable assembly. It converts the 120 ohms D-connector to 75 ohms coaxialcable. The impedance is switch set. The switch-settings table at the endof this chapter describes the options. See Table 367 "2 MB DTI switchoptions" (page 890).If a coaxial interface is required, use NT5K85 in conjunction with theNTBK05.Table 3672 MB DTI switch optionsSwitchOff(Switch Open)On(Switch Closed)S1-1 — —S1-2 CC Enabled CC DisabledS2-1 120 ohms 75 ohmsS2-2 75 ohms 120 ohmsS3-1 non-French Firmware French FirmwareS3-2 — —For the Conference of European Postal Communications (CEPT) interface,the connection to the external digital carrier is through NT5K85 DTI cableassembly A0392021. It converts the 120ohm D-connector to 75ohm coax.The impedance is switch set. See the switch-settings table at the endof this chapter for options.If a coax interface is required, use NT5K85 in conjunction with the NTBK05.For the Conference of European Postal Communications (CEPT) interface,the connection to the external digital carrier is through the NT5K85 DTIcable assembly. It converts the 120 ohms D-connector to 75 ohms coaxialcable. The impedance is switch set. The switch-settings table at the end ofthis chapter describes the options. See Table 369 "2 MB DTI switch options"(page 902) "Switch settings" (page 901).Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
