Overview

The G703-FTEC is a T1 (US Standard) /E1 (European Standard) converter and timeslot cross connect which enables conversion between one T1 signal and one E1 signal. T1 and E1 signals with frames employ u-Law and A-Law compander encoding principles respectively and encode those analog signals into 64kbits digital data. Tests and diagnostics can easily be performed from the front panel pushbutton switches. Diagnostics include T1 local/remote and E1 local/remote loop back. The T1 interface supports D4 or ESF frame formats with B8ZS or AMI line code. The E1 interface supports CCS (PCM31) or CAS (PCM30) frames without CRC-4 and frames with CRC-4. The line code is HDB3. Multiple clock source selection provides maximum flexibility in connecting both T1 and E1. The clock source may be from the T1 recovery clock, from the E1 recovery clock, from the internal oscillator, from an external clock or via transparent timing. The unit is built in a compact case that can be placed on a desktop, shelf or installed, by means of an optional adapter, in a 19 inch EIA rack. All setup controls can be performed via internal DIP switch settings or via the RS-232 Craft port and ASCII terminal.