Exfo FTB-800 Series for FTB-1 Uživatelský manuál stáhnout pdf (Strana 295)

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Test Results

NetBlazer 285

Alarms/Errors

TCM (SONET/SDH)

Note: TCM is displayed for rates up to OC-192/STM-64 under the STS-x/AU-x or

VT/TU alarms/errors group when TCM is enabled.

Alarms

 TC-UNEQ-P / HPTC-UNEQ (Unequipped)

RX/TX: An all “0”s pattern is received/generated in the higher order

path signal label byte (C2), the TCM byte (N1) and the path trace byte

(J1), and a valid BIP-8 bytes (B3).

 TC-UNEQ-V / LPTC-UNEQ (Unequipped)

(LPTC - Unequipped)

RX/TX: An all “0”s pattern is received/generated in the lower order path

signal label (bit 5, 6, 7 of byte V5), the TCM byte (Z6/N2) and the path

trace byte (J2), and a valid BIP-2 (bits 1, 2 of V5 byte).

 TC-LTC-P / TC-LTC-V / HPTC-LTC / LPTC-LTC (Loss of Tandem

Connection)

RX/TX: A wrong FAS multiframe is received/generated.

 TC-IAIS-P / HPTC-IAIS (Incoming Alarm Indication Signal)

RX/TX: Bits 1 through 4 of the N1 byte are set to “1110”.

 TC-IAIS-V / LPTC-IAIS (Incoming Alarm Indication Signal)

RX/TX: Bit 4 of the Z6/N2 byte is set to “1”.

 TC-ODI-P / TC-ODI-V / HPTC-ODI / LPTC-ODI (Outgoing Defect

Indication)

RX/TX:

 SONET: Bit 7 of the N1/Z6 byte frame 74 is set to “1”.

 SDH: Bit 7 of the N1/N2 byte multiframe 74 is set to “1”.

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