TXC-04222-AIOG Transwitch Corporation, TXC-04222-AIOG Datasheet - Page 81

• Manufacturer Part Number: TXC-04222-AIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-04222-AIOG

• Screening Level: Industrial
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

TC AIS Generation
Bit 4 in the N2 byte is defined as an AIS indication. When control bit AnTCAIS (bit 4, X+113H) or BnTCAIS
(bit 4, X+193H) is a 1, bit 4 is transmitted as a 1.
Bits 7 and 8
The TEMx28 will construct and transmit the 76 frame sequence in bits 7, and 8. A multiframe alignment pat-
tern, trace identifier message, TC RDI and TC ODI indications are assigned to bits 7 and 8 in the frames of a
76-frame structure, as shown below. The TEMx28 will generate the multiframe pattern specified for frames 1
through 8. This will followed by inserting the 16 byte message written to the 16 byte N2 RAM segment by the
microprocessor, which is followed by the insertion of TC RDI and TCODI. Please note the TEMx28 does not
calculate the CRC-7 for the message, nor does it insert the 1000... pattern transmitted the message.
TC RDI Generation
Bit 8 in frame 73 is defined as a Tandem Connection Remote Defect Indication (TC RDI). A TC RDI alarm is
generated for the following unlatched alarm indications. TC RDI is sent for a minimum of 10 times.
-
- When TC enable (TCnRE) is a 0
When TC enable (TCnRE) is a 1 and the RnJ2S1 of the corresponding drop bus is 0.
- Drop Bus Loss Of Clock (ADLOC, BDLOC) when DLCTE is a 1
- Drop Bus AIS alarm (AxUAIS, BxUAIS) when HEAISE and USTCE are 1
- Loss of pointer alarm (AnLOP, BnLOP)
- VT/TU AIS detected (AnAIS, BnAIS)
- Unequipped signal label (AnUNEQ, BnUNEQ) when UQTCE is a 1
- Mismatch signal label (AnSLER) when PLSTCE is a 1
- J2 Loss Of Lock Alarm (AnJ2LOL, BnJ2LOL) when J2TCE is a 1
- J2 Mismatch Alarm (AnJ2TIM, BnJ2TIM) when J2TCE is a 1
- VT AIS detected (AnVCAIS, BnVCAIS) when VCTCE is a 1
- TC Loss Of Multiframe (AnTCLM, BnTCLM)
- TC Loss Of Lock Alarm (AnTCLL, BnTCLL)
- TC Mismatch Alarm (AnTCTM, BnTCTM)
- TC Unequipped Alarm (AnTCUQ, BnTCUQ)
- A 1 written to ATnTCSR, BTnTCSR
- A 1 written to ATnTCSR, BTnTCSR
21 - 24 thru 61 - 64 TC Trace ID Bytes No. 3 thru 13
Proprietary TranSwitch Corporation Information for use Solely by its Customers
Frame No.
13 - 16
17 - 20
65 - 68
69 - 72
9 - 12
1 - 8
73
74
75
76
Multiframe Alignment, 1111 1111 1111 1110
TC Trace ID Byte No. 0 (1 C1 thru C7)
TC Trace ID Byte No. 1 (0 X X X X X X X)
TC Trace ID Byte No. 2 (0 X X X X X X X)
TC Trace ID Byte No. 14 (0 X X X X X X X)
TC Trace ID Byte No. 15 (0 X X X X X X X)
Bit 7 = 0, Bit 8 = TC RDI
Bit 7 = TC ODI, Bit 8 = 0
Bit 7 = 0, Bit 8 = 0
Bit 7 = 0, Bit 8 = 0
DATA SHEET
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N2 Byte Definition
TXC-04222-MB, Ed. 6
TXC-04222
TEMx28
June 2003