A cost effective solution for interconnection of RS-232 devices and CCITT X.21 devices located in proximity of each other

• Compact, Simple, Economical Interfacing Solution
• Speeds Up To 64Kbps
• One DB-25 (V.24) Female Connector and One X.21 DB-15 Female Connector
• Transparent to Data
• TXD, RXD, TXC, RXC, ETXC, RTS, CTS, DTR, DSR, DCD Interface Leads are Converted
• Between V.24 and X.21
• 8 Bit Ring Buffer for Modem to Modem Interconnection
• Internal Linear Power Supply with a 110/220VAC Switch
• Sturdy Aluminum

The Interface Converter / Tail Circuit Buffer is convenient since you can select which RS-232 interface lead is translated to which X.21 interface lead. This combination of lead programability, along with DTE/DCE selection of each interface, allows the user to have one unit that can satisfy all interface conversion requirements without using several different products. Devices can be separated up to 4000 feet away on the balanced side and RS-232 devices can be extended up to 50 feet away.

The unit is supplied with a DB-25 female connector on the RS-232 port and a female DB-15 connector for X.21 port. 110 or 220 Volt operation is provided by a switch located inside the case of the Interface Converter.