ADTRAN ISU 512 User Manual

Also see for ISU 512: User manual Specifications

Contents

ADTRAN ISU 512 User Manual Manual pdf 26 page image

Chapter 3: Installation10 ISU 512 User Manual 61202.086L1-1DTE DATA CONNECTIONData terminal equipment (DTE) is connected to the ISU 512 by using the V.35interface, and/or the RS-530 interface on the rear panel of the ISU 512. Themaximum cable lengths recommended are 50 feet for the RS-530 interface, or150 feet for the V.35 interface. The pin assignments for the DTE interfaces areshown in the appendix Pinouts.The RS-530 interface and the V.35 interface support data rates up to 512 kbps.The DTE rate can be configured from the front panel or the VT 100 terminalinterface of the ISU 512. See the chapter Configuration for information regard-ing configuring the ISU 512 with the appropriate data rates for the application.To prevent possible radio frequency interference emissions, shielded cables are re-quired.DIAL INTERFACE CONNECTIONIf out-of-band RS-366 dialing is required for applications such as video confer-encing, the dialing interface of the host DTE should be connected to the portlabeled RS366 DIALING PORT. A special RS-366 Y cable provides the twoRS-366 interfaces required for dual-port videoconferencing applications (partnumber 1200120L1). For pin assignment information for the RS-366 connectorand the RS-366 Y cable, see the appendix Pinouts.Smart Dial String FormatsThe ISU 512 accepts changes to Call Type and Channel Rate by using suffixcommands appended to the end of the dial string. The following string formatis used.Where #C changes the Call Type as follows:1 = Speech2 = Audio3 = 56K Data4 = 64K DataXXX XXX XXXX #C #Rdial string call type channel rate