TXC-04252AIPQ Transwitch Corporation, TXC-04252AIPQ Datasheet - Page 124

• Manufacturer Part Number: TXC-04252AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-04252AIPQ

• Pin Count: 160
• Screening Level: Industrial
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Ed. 3, December 2000
QE1M
TXC-04252
TXC-04252-MB
05B Port 1
08B Port 2
0BB Port 3
0EB Port 4
100 Port 1
200 Port 2
300 Port 3
400 Port 4
101 Port 1
201 Port 2
301 Port 3
401 Port 4
Address
7-0
7-0
Bit
Proprietary TranSwitch Corporation Information for use Solely by its Customers.
7
6
5
4
3
2
1
0
AnTCODI
AnTCAIS
AnTCRDI
AnTCUQ
AnTCLM
AnTCTM
Symbol
AnTCLL
Counter
Counter
Unused
An TC
An TC
BIP-2
Error
Error
REI
A Drop Bus Port n Tandem Connection Unequipped Alarm: A TC
unequipped alarm indication (a 1) occurs when bits 3 through 8 in the N2
(Z6) byte are all equal to 0 for 5 or more consecutive frames. Recovery to
0 occurs when bits 3 through 8 are not all equal to 0 for 5 or more con-
secutive frames.
A Drop Bus Port n Tandem Connection AIS Alarm: A TC AIS alarm
indication (a 1) occurs when bit 4 in the N2 (Z6) byte is equal to 1 for five
or more consecutive frames. Recovery to 0 occurs when bit 4 is a 0 for
five or more consecutive frames.
A Drop Bus Port n Tandem Connection Loss Of Multiframe Alarm: A
TC loss of multiframe alarm indication (a 1) occurs when four or more
consecutive errored multiframes are detected in bits 7 and 8 in the N2
(Z6) byte. Recovery to 0 occurs when three consecutive non-errored
multiframes (1111 1111 1111 1110) are detected.
A Drop Bus Port n Bus Tandem Connection Trail Trace Message
Loss Of Lock Alarm: An alarm indication (a 1) occurs when the align-
ment of the 16-byte N2 (Z6) Tandem Connection Trace identifier label
(message) has not been established.
A Drop Bus Port n Bus Tandem Connection Trail Trace Message
Mismatch Alarm: An alarm indication (a 1) indicates that the stable Tan-
dem Connection 16-byte message did not match for one message time.
Recovery to 0 occurs when the N2 (Z6) byte TC message state machine
loses lock and then acquires lock with a 16-byte stable N2 (Z6) byte
message that matches the N2 (Z6) byte comparison message written by
the microprocessor.
A Drop Bus Port n Tandem Connection ODI Alarm: A TC ODI alarm
indication (a 1) occurs when N2 (Z6) byte bit 7 in frame 74 is equal to 1
for five or more consecutive frames. Recovery to 0 occurs when bit 7 is a
0 for five or more consecutive frames.
A Drop Bus Port n Tandem Connection RDI Alarm: A TC RDI alarm
indication (a 1) occurs when N2 (Z6) byte bit 8 in frame 73 is equal to 1
for five or more consecutive frames. Recovery to 0 occurs when bit 8 is a
0 for five or more consecutive frames.
Unused: This bit reads out as indeterminate.
A Drop Bus Port n Tandem Connection BIP-2 Counter: An 8-bit
counter which counts the number of BIP-2 errors detected in the N2 (Z6)
byte for the TU/VT selected when the tandem connection feature is
enabled. A maximum of two errors can be counted each frame. These
two errors cause a single count if the BLOCK control bit is set to 1. The
counter saturates at full count and is cleared when it is read.
A Drop Bus Port n Tandem Connection REI Counter: An 8-bit counter
which counts the number of REI errors detected in bit 5 in the N2 (Z6)
byte for the TU/VT selected when the tandem connection feature is
enabled. The counter saturates at full count and is cleared when it is
read.
DATA SHEET
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