tfra08c13 ETC-unknow, tfra08c13 Datasheet - Page 79

• Manufacturer Part Number: tfra08c13
• Description: Tfra08c13 Octal T1/e1 Framer
• Manufacturer: ETC-unknow

Preliminary Data Sheet
October 2000
Alarms and Performance Monitoring
Transmit Line Test Patterns—Using Register FRM_PR69
Framed or unframed patterns indicated in Table 34 may be generated and sent to the line by register FRM_PR69
and by setting register FRM_PR20 to 00 (hex). Selection of transmission of either a framed or unframed test pat-
tern is made through FRM_PR69 bit 3. If one of the test patterns of register FRM_PR69 is enabled, a single bit
error can be inserted into the transmitted test pattern by toggling register FRM_PR69 bit 1 from 0 to 1.
Table 34. Register FRM_PR69 Test Patterns
Lucent Technologies Inc.
Lucent Technologies Inc.
MARK (all ones AIS)
QRSS (2
2
63 (2
511 (2
511 (2
2047 (2
2047 (2
2
2
2
2
1:1 (alternating)
The idle code test pattern, enabled by setting register FRM_PR20 bit 6 to 1, which consists of the following:
— The programmable idle code, programmed through register FRM_PR22, in time slots 1—24 in DS1 and 0—31
— Valid framing pattern.
— Valid transmit facility data link (TFDL) bit data.
— Valid CRC bits.
5
15
20
20
23
– 1
– 1
– 1
– 1
– 1
in CEPT.
XOR
6
A
B
9
9
– 1)
11
11
– 1)
– 1) reversed
20
– 1)
– 1) reversed
C
– 1 with zero suppression)
Figure 30. 15-Stage Shift Register Used to Generate the Pseudorandom Signal
Pattern
D-TYPE FLIP-FLOPS
D
#1
D
#2
Bit 7 Bit 6 Bit 5 Bit 4
0
0
0
0
0
0
0
0
1
1
1
1
1
Register FRM_PR69
0
0
0
0
1
1
1
1
0
0
0
0
1
D
(continued)
#3
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
D
#13
TFRA08C13 OCTAL T1/E1 Framer
D
#14
D
#15
PSEUDORANDOM
TEST OUTPUT
5-3915(F).er.1
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