DISTRIBUTION AMPLIFIERS G.703
DDA-4280 2.048 Mb/s (E1) G.703 Data Distribution Amplifier DDA-4320 ASI/SDI/STM-1 Path Protection Amplifier ZDA-4320RH Double Rear Assembly for Handshaking 2 x DDA-4320's DDA-4301 (E3 / DS3) G.703 Data DA ZDA-4300RH Double Rear Assembly for Handshaking 2 x DDA-4301's
