Protection of T3 / E3 / DS3 Ports
T3 / E3 / DS3 lines are concentrated digital phone lines with bit rates of up to 45 Mbps. The data signals are low voltage (~5V).
Two options are shown. The top is aGR-1089 Inter-building solution that employs a TeleLink fuse, a SIDACtor and two MURS163T diodes (ON Semiconductor). The lower solution is a GR-1090 Intra-building solution using TeleLink fuse and a SIDACtor.
Other voltage SIDACtor devices are available for specific designs.
This solution is designed to comply with Telcordia’s GR-1089.
Ruilon is the only vendor offering the low capacitance P0642SA device.
Does not apply.