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XRT94L43 Datasheet(PDF) 8 Page - Exar Corporation |
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XRT94L43 Datasheet(HTML) 8 Page - Exar Corporation |
8 / 328 page XRT94L43 8 REV. 1.0.2 SONET/SDH OC-12 TO 12XDS3/E3 MAPPER • Inserts MA,NR,GC and TR (TTB) from microprocessor accessible registers (service bit for G.751) • Inserts FEBE in MA upon receipt of EM byte errors.Programmable through register bit (G.832) • Asserts FERF upon any combination of LOS,OOF or AIS received from receiver (G.832) • Inserts synchronous status message from microprocessor accessible registers, when enabled (G.832) • Error masks for framing bytes, and computed parity (BIP-8 in case of G.832 and BIP-4 in case of G.751) • Optionally accepts overhead bits (except FA bytes for G.832 and FAS bits for G.751) from input interface E3/DS3/STS-1 DE-JITTERING/DE-SYNC CIRCUIT • Meets the E3/DS3/STS-1 jitter requirements • Compliant with jitter transfer template outlined in ITU G.751,G.752,G.755 and GR-499-CORE • Meets output jitter requirement as specified by ETSI TBR24 • Meets the jitter and wander specifications described in T1.105.03b,GR-253 and GR-499 standards • Performs the De-synchronizer function and pointer adjustments for STS-1 to DS3 mapping PERFORMANCE MONITORING • Supports line and path performance monitoring • Provides 32-bit saturating counter of OOF errors • Provides 32-bit saturating counter LOF errors • Provides 32-bit saturating counter of LOS errors • Provides 32-bit saturating counter of SD errors • Provides 32-bit saturating counter of SF errors • Provides 32-bit saturating counter B3 errors • Provides 32-bit saturating counter of the line RDI, path AIS,REI-L errors, REI-P errors and BIP-8(B1,B2),B3 errors and loss of pointer • Provides 16-bit saturating counter of DS3 framing bit errors, DS3 frame parity errors, line code violations, frame parity (BIP) errors, DS3 frame CP bit errors and DS3 Far-End Block errors • One second statistics 1. Bipolar violations 2. Frames with parity errors 3. Frames with CP bit errors 4. Errored second indication 5. Severely errored second indication INTERRUPT, STATUS AND TEST • Provides individually maskable interrupts • Provides one second interrupt generations • Generates interrupts from the following causes: • DS3 OOF status change, LOS status change, DS3 AIS status, LAPD message received, DS3 parity error,DS3 FEAC validation, DS3 FEAC removal, DS3 IDLE status change, FEBE (E3) change, DS3 FERF change, DS3 format change (AIC), LAPD end of message transmission and DS3 FEAC end of message transmission, DS3 Framing alignment change, SONET OOF status change and COFA • Provides local and remote line loopback |
Similar Part No. - XRT94L43_06 |
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Similar Description - XRT94L43_06 |
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