Atec Acterna-JDSU-ANT-20SE - Manual (Page 9)

Optical Interfaces
All of the optical interfaces are intended for single-mode fibers. Acterna
offers a complete line of optical test adapters. Select one test adapter
each for the generator and receiver from the ordering information in
this data sheet. All optical interface options include the required
number of test adapters.
The STM-0 optical interface requires the option ªAdd SONETº.
Optical Modules up to 155 Mbit/s
Optical OC-1/3, STM-0/1, 1310 nm BN 3060/91.01
Optical OC-1/3, STM-0/1, 1310 & 1550 nm BN 3060/91.02
Bit rate of TX and RX signal . . . . . . . . . . . . . . . . . . . . . . . 155 520 kbit/s
additionally, for STS-1/STM-0 mappings . . . . . . . . . . . 51 840 kbit/s
Line code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . scrambled NRZ
Generator unit
The generator meets the requirements of Telcordia GR-253,
ANSI T1.105.06 (ITU-T Rec. G.957, Tables 2 and 3).
Classes LR-1, LR-2, LR-3 (L1.1, L1.2 and L1.3) are covered.
There are two options for adapting to the required wavelength:
Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1310 nm,
1310 & 1550 nm (switchable in the instrument)
Output level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 dBm +2/±3 dB
with 1310 & 1550 nm option . . . . . . . . . . . . . . . . . 0 dBm +2/±3.5 dB
Receiver unit
The receiver unit meets the specifications of Telcordia GR-253,
ANSI T1.105.06 (ITU-T Rec. G.957) and fulfills classes IR-1, IR-2
(S1.1 and S1.2).
Wavelength range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 to 1580 nm
Input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8 to ±28 dBm
(±8 to ±34 dBm typ.)
Display of optical input level
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dB
155 Mbit/s electrical interface
for connecting the ANT-20SE to STM-1/STS-3 monitor points
Line code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . scrambled NRZ
Input voltage (peak-peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 to 1 V
Unbalanced input
Connector/impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SMA/50 O
Optical Modules up to 622 Mbit/s
Optical OC-1/3/12, STM-0/1/4, 1310 nm BN 3060/91.11
Optical OC-1/3/12,
STM-0/1/4, 1310 & 1550 nm BN 3060/91.12
Bit rate of TX and
RX signal. . . . . . . . . . . . . . . . . . . . . . . . . . 155 520 kbit/s, 622 080 kbit/s
additionally, for STS-1/STM-0 mappings . . . . . . . . . . . 51 840 kbit/s
Line code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . scrambled NRZ
Generator unit
The generator meets the requirements of Telcordia GR 253,
ANSI T1.105.06 (ITU-T Rec. G.957, Tables 2 and 3).
Classes LR-1, LR-2, LR-3 (L1.1, L1.2, L1.3, L4.1, L4.2 and L4.3) are
covered.
There are two options for adapting to the required wavelength:
Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1310 nm,
1310 & 1550 nm (switchable in the instrument)
Output level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 dBm +2/±3 dB
with 1310 & 1550 nm option . . . . . . . . . . . . . . . . . 0 dBm +2/±3.5 dB
Generation of OC-12 TX signal
In instruments with STS-1 mappings
The OC-12 TX signal consists of
± one internally generated STS-1 tributary signal with the other
11 tributaries filled with UNEQ or
± one internally generated STS-3c tributary signal with the other
three tributaries filled with UNEQ (with STS-3c mapping option
or ATM Basic Option BN 3060/90.50).
Generation of STM-4 TX signal
In instruments with STM-1 mappings
The STM-4 TX signal consists of
± four identical STM-1 tributary signals (AU-4), or
± one internally generated STM-1 tributary signal with the other
three tributaries filled with UNEQ.
Contents of the OC-12/STM-4 overhead bytes
For all bytes except B1, B2 and H1 to H3:
± The content of each byte is statically programmable or a user
defined byte-sequence p in m in n (p frames in m frames and the
entire sequence repeated n times) can be inserted.
For the E1, E2, F1 bytes and the DCC channels
D1 to D3 and D4 to D12:
± Transmission of a test pattern with bit error insertion (see main-
frame for pattern selection)
± Insertion of an external data signal (via the V.11 interface)
For the K1, K2, N1, N2 bytes:
± Insertion of the data signal via the V.11 interface
For the J0 bytes:
± Transmission of a 16-byte sequence, with CRC
Error insertion
Error types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1 and B2 parity error
additionally, for OC-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REI-L
for STM-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MS-REI
Triggering
Single errors or error ratio . . . . . . . . . . . . . . . . . . . 2610 ±3 to 1610 ±10
for B1 parity errors. . . . . . . . . . . . . . . . . . . . . . . . . . 2610 ±4 to 1610 ±10
Burst error: m anomalies in n periods
For FAS, B1, B2, B3, REI-L, REI-P . . . . . . . . . m= 1 to 4.86106 and
n= 2 to 8001 frames or 0.2 s to 600 s
Alarm generation, dynamic
Alarm types for OC-12 . . . . . . . . . . . . . . . . . . . . . . . LOF, AIS-L, RDI-L
for STM-4 . . . . . . . . . . . . . . . . . . . LOF, MS-AIS, MS-RDI
m alarms in n frames . . . . . . . . . . . . . . . . . . . m = 1 to n-1, n
max
= 8000
or
t1 alarm active, t2 alarm passive . . . . . . . . . . . . . . . . . . . . t1 = 0 to 60 s,
t2 = 0 to 600 s
Alarm generation, static (on/off)
Alarm types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LOS, LOF
additionally, for OC-12 . . . . . . . . . . . . . . . . . . . . . AIS-L, RDI-L, TIM-L
for STM-4 . . . . . . . . . . . . . . . . MS-AIS, MS-RDI, RS-TIM
Insertion on/off
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