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The Telesync TS-235 V.35/RS-449 to ISDN Adapter allows you to  interface ISDN-based videoconferencing systems to V.35 and RS-449 dialed and non-dialed networks. The TS-235 uses one or two V.35 or RS-449 lines with RS-366 dialing ports and adapts the signals for 56K, 2 x 56K, 64K, 2 x 64K, 112K, 128K, 168K, 192K, 224K, 256K, 280K, 320K, 336K, or 384K videoconferencing. Mode 1 Bonding equalizes the delay for the ISDN S/T interfaces. Videoconferences of  2x56K or 2x64K require two V.35 or RS-449 network ports and cables. All other videoconferencing rates require only one V.35 or RS-449 network port. Installation is easy. Simply plug in the AC power adapter, connect the optional V.35 or RS-449 cables and the optional RS-366 dialing port cables to the appropriate network interfaces. Connect the ISDN cables supplied with the  videoconferencing system. Features conferencing Systems to V.35 and RS-449  Networks Conversion of one or two V.35 or RS-449 Network Interfaces with RS-366 Dialing Ports to ISDN S/T Interfaces Terminates ISDN D-Channels and Performs Call Origination on RS-366 Dialing Ports Call Termination on RS-366 Ports and Conversion to D-Channel Call Setup Mode 1 Bonding on ISDN S/T Interface for 112K, 128K, 168K,192K, 224K,  256K,280K, 320K, 336K, and 384K Calls Dialed or Non-Dialed V.35 or RS-449 Operation. Supports Automatic Resynchronization of Selected Cryptographic Devices Systems in a V.35/RS-449 Environment Specification Allows Interface of ISDN-based Videos ISDN S/T Interfaces: Three ISDN S/T interfaces, RJ45 equivalent to NT- 1 interface. Emulates switched protocol AT&T 5ESS, Point-to-Point V.35/RS-449 Network 1 Interface: Synchronous V.35 or RS-449 interface  wth support for 56K, 64K, 112K, 128K, 168K, 192K, 224K, 256K, 280K, 320K, 336K,  and 384K. Mode 1 Bonding on the ISDN S/T Interfaces equalizes the delay. Connector is a DB37. Cables convert rear panel DB37 connector to RS-449  connector or V.35 connector. V.35/RS-449 Network 2 Interface: Synchronous V.35 or RS-449 interface  with support for 56K or 64K. Connector is DB37. RS-366 Net 1 dialing port, DB25 connector RS-366 Net 2 dialing port, DB25 connector RS-232C: DB-9 female 38,400 baud, 1 stop, 1 start, 8 data bits, and no parity for configuration and maintenance data. Dialed/Non-Dialed: Permits non-dialed or dial up operation with V.35 or RS-449 Network Interface circuits. Power Requirements: 110Vac/220Vac, 8 Watt using external module supplied. General: Dimensions: 2.25"H x 8.36"W x 9.00" D Weight: 4  pounds Temp: 0-50 C Ordering Information TS-235 V.35/RS-449 to ISDN ADAPTER: Dual V.35/RS-449  Synchronous Network Interface Adapter with RS-366 dialing. Three ISDN BRI with Mode 1 Bonding. Power Module has IEC Connector Optional Cables: P/N 400145 RS-449/RS-449 Cable, 1  meter P/N 400146 RS-449/V.35 Cable, 1 meter P/N 400147 DB25/DB25 Dial Port Cable, 1 meter