Telecom & Data Communications

ISDN

| ST5421CFN - SID-GCI S/T INTERFACE DEVICE WITH GCI

| ST5421CP - SID-GCI S/T INTERFACE DEVICE WITH GCI

| ST5451 - ISDN HDLC AND GCI CONTROLLER

| STH221 - MULDEX IC FOR MULTIMEDIA TELESERVICES

| STLC5411FN - 2B1Q U INTERFACE DEVICE

| STLC5411P - 2B1Q U INTERFACE DEVICE

| STLC5432 - 2MBIT CEPT & PRIMARY RATE CONTROLLER DEVICE

| STLC5444 - QUAD FEEDER POWER SUPPLY

| STLC5460 - LINE CARD INTERFACE CONTROLLER

| STU2071B1 - 4B3T U INTERFACE CIRCUIT

| STU2071FN - 4B3T U INTERFACE CIRCUIT