HP 37717C Calibration Manual page 58

General Information
Specifications
electrical signal, external MTS - data or
clock format (as ITU-T G.811)
Frequency offset generation: Up to
999 ppm in 0.1 ppm steps
STM-4 error add (Not available if
SDH option is US1): Frame - single
and N in 4 frame words, MS B2 BIP -
-4 -9
10 to 10
STM-4 alarm generation: Loss of
signal (requires A1T), loss of frame
(requires A1T), multiplexer section
AIS, multiplexer section FERF.
STM-4 thru mode: The STM-4 signal
is passed through the HP 37717C
without being altered for monitoring
purposes where no protected monitor
point is available.
STM-4 Tx Overhead: Standard
overhead values to ITU-T G.70X
User programmable bytes (Not
available if SDH option is US1):
RSOH:A1, A2, C1, E1, F1, D1-D3
MSOH: H1 (SS bits only), K1, K2,
D4-D12, S1, Z2 (column 4), Z1 & Z2
(for STM-1 under test), M1 (when
STM-1 number 3 selected for test)
STM-4 sequence generation (Not
available if SDH option is US1): A
single or multi-byte overhead channel
is overwritten with a single or repeating
sequence of programmed values. The
sequence can contain up to 5 different
values each being transmitted for up to
64,000 frames.
RSOH: D1-D3, E1, F1, C1 (for STM-1
under test), D4-D12, K1-K2, S1, E2,
Z1 & Z2 (for STM-1under test), M1
(when STM-1 number 3 selected for
test)
High order POH: J1, C2, G1, F2, H4,
Z3, Z4, Z5 (for STM-1 under test)
STM-4 overhead BER test (Not
available if SDH option is US1): Any
overhead channel listed under STM-4
sequence generation (except Z1, Z2)
9
can have a 2 -1 PRBS inserted into a 64
kb/s channel. Single errors can be
added to the test pattern and a BER
measurement performed.
STM-4 MSP message generation:
Messages are displayed in text form as
ITU-T G.783.
User programmed sequences (Not
available if SDH option is US1).
Receive:
Wavelength: 1200 - 1600 nm
Sensitivity: STM-1 -34dBm
minimum, STM-4 -28 dB minimum
(with 1310 nm wavelength,100%
modulation depth, BER of 10
23
2 PRBS)
Maximum input power: -8 dBm (for
-10
BER of 10 ). Damage level +10 dBm
Protected monitor point:
Input level: nominal 150 mV to 1000
mV pk-pk
Line code: NRZ
Impedance: Nominal 50 , AC
coupled
Optical power measurement: Range 0
to -30dBm, Accuracy 1dB
STM-4 error results: RS B1 BIP, MS
B2 BIP
STM-4 alarms detected: Loss of
signal, loss of frame, out of frame,
multiplexer section AIS, multiplexer
section FERF, clock loss, K1/K2
change, (Not available if SDH option is
US1).
STM-4 overhead sequence capture
-10
and
1-37