DUAL E1 CARD 3 (75 OHM) This is the 75 ohm Dual E1 Card version 3. This card is backwards compatible with 90-0565-01 (Dual E1 2.048 Card)and 90-0568-01 (E1-75 OHM LIM MODULE). This card incorporates the LIMs on board so no external LIM is required. This c

DUAL E1 CARD 3 (75 OHM) This is the 75 ohm Dual E1 Card version 3. This card is backwards compatible with 90-0565-01 (Dual E1 2.048 Card)and 90-0568-01 (E1-75 OHM LIM MODULE). This card incorporates the LIMs on board so no external LIM is required. This card is designed to replace the existing Dual E1 card and has been designed to simplify ordering and sparing.