Atec JDSU-ONT Series - Manual (Page 10)

ONT-5xx 40/43 Gb/s Test Solution
10
Error insertion
Types
SDH Random, FAS, B1, B2, B3, MS-REI, HP-REI, bit errors
SONET Random, FAS, B1, B2, B3, REI-L, REI-P, bit errors
Trigger Single, rates
Error Min rate Max rate Stepping Mapping
Random 1 Ч 10 -10 1 Ч 10 -3 Exponential –
FAS 1 Ч 10 -12 1 Ч 10 -3 0.1 –
B1 1 Ч 10 -12 1.61 Ч 10 -6 0.1 –
B2 1 Ч 10 -12 1 Ч 10 -3 0.1 –
MS-REI,
REI-L 1 Ч 10 -12 1 Ч 10 -3 0.1 –
B3 1 Ч 10 -12 1.61 Ч 10 -6 0.1 STM-VC-4-256c,
STS-1-768cSPE
B3 1 Ч 10 -12 1 Ч 10 -3 0.1 STM-VC-3,
STS-1-SPE
HP-REI,
REI-P 1 Ч 10 -12 1.61 Ч 10 -6 0.1 STM-VC-4-256c,
STS-1-768cSPE
HP-REI,
REI-P 1 Ч 10 -12 1 Ч 10 -3 0.1 STM-AU-3/VC-3,
STS-1-SPE
Bit error 1 Ч 10 -12 1 Ч 10 -3 Exponential –
Burst error once and continuous M errored frames followed by
N error-free frames. All errors except random and bit errors
N, M = 1 to 8000000 or 125 µs to 1000 s
Alarm generation
Type:
SDH LOF, RS-TIM, MS-AIS, MS-RDI, AU-AIS, AU-LOP, HP-UNEQ,
HP-TIM, HP-PLM, HP-RDI, HP-RDI-C, HP-RDI-S, HP-RDI-P
SONET LOF, AIS-L, RDI-L, TIM-L, AIS-P, LOP-P, UNEQ-P,
TIM-P, PLM-P, RDI-P, RDI-P-C, RDI-P-S,
RDI-P-P, PDI-P
Trigger LOS, TIMs on/off
All others on/off or burst
Burst once and continuous
M frames with alarm ON, N frames with alarm OFF
N, M = 1 to 800000 or 125 µs to 1000 s
Trigger output
Generates an external trigger signal at generation of the internal
event.
Types
SDH Off, frame trigger, MS-AIS, AU-AIS, B1, B2, B3, Bit errors
SONET Off, frame t rigger, AIS-L, AIS-P, B1, B2, B3, Bit errors
Pulse output Event present, logical high
Level TTL compatible, high >2.4 V, low <0.8 V
Connector BNC, 75 Ω
Overhead generator
The stimulus of different overhead byte pattern is an important
part of verification and interoperability testing. Network elements
(NE) should respond in the defined manner and any responses then
conveyed by a different overhead byte.
Statically programmable bytes
A1-A2 unscrambled •
RSOH/SOH all bytes except B1 •
MSOH/LOH all bytes except B2, H1...H3 •
POH all bytes except B3 •
Display of overhead on the GUI.
Trace identifier
J0, J1 programmable 1 byte, 16 bytes with CRC or 64 byte sequence
Generation of pointer actions
Generation of pointer actions at the AU/STS level
New pointer value setting with or without NDF •
Offset simulation in ppms •
Single, periodical and alternating pointer increment/decrement •
Pointer sequences with different types •
SS-bits definable •
Analyzer
Test pattern PRBS: 2 31 -1, 2 23 -1, 2 15 -1, 2 11 -1,
2 31 -1 inv., 2 23 -1 inv. , 2 15 -1 inv., 2 11 -1 inv.
(conforming to ITU-T O.150)
Programmable word Length 32 bits
“Live traffic” mode ignores pattern loss and bit error that allows ana-
lysis of live traffic without trouble indication
Error measurements
SDH FAS, B1, B2, B3, MS-REI, HP-REI, Bit errors
SONET FAS, B1, B2, B3, REI-L, REI-P, Bit errors