STM-16/OC-48 2.4-Gbps Test Set for DWDM Applications

ST2400A

Features & Benefits

Optimized for Dense Wavelength Division Multiplexing (DWDM) Transmission Quality Testing
Available in Transceiver, Receiver, and Transmitter-Only Versions
Tributary Testing of STM-64/OC-192 Systems
Easily Switchable to/from SDH/SONET
Optical Tributary Payload Add/Drop with Payload Independence
External Sync Reference for Timing Coordination
Active Through Mode to Simulate Fault Conditions on Installed Networks
Compact and Light Weight for Production and Installation Test
A Variety of Optics Options, Including No Optics
Emulates Network Elements Transmitting Live Traffic

Applications

The ST2400A meets the needs of development, manufacturing, and service engineers by providing the capabilities for:

System Interrogation and Conformance Testing
Manufacturing Production Testing
Network Integrity Testing
Network Performance Monitoring
Network Troubleshooting

The ST2400A is the first STM-16/OC-48 test product optimized for testing 2.488-Gbps Dense Wavelength Division Multiplexed (DWDM) client systems. Its compact size, flexibility of configuration, choice of operating modes, unique I/O features, extensive software driver support, and range of error- and defect-inject capabilities make it particularly effective for DWDM system test during production and installation. It can also be used in non-DWDM SDH and SONET test applications.

The ST2400A is payload independent; external SDH/SONET 155-Mbps optical and electrical and 622-Mbps optical signals are supported in add/drop mode. The ST2400A can be ordered as an ST2400A Transceiver, as an ST2400R Receiver, or as an ST2400T Transmitter to meet a wide range of application needs economically.

The ST2400A Transceiver version can transmit and receive STM-16/OC-48 signals. The ST2400A has the ability to receive, generate, and modify an STM-16c/OC-48c signal. The transmitter section can internally generate a 2.4-Gbps signal or multiplex the higher-rate signal from STM-1 or STM-4 (OC-3 or OC-12) signal inputs. The ST2400A can also accept an STM-16/OC-48 signal in Through Mode and regenerate it. The receiver section receives an STM-16/OC-48 signal, demultiplexes it, and can drop out either the STM-1 or STM-4 (OC-3 or OC-12) signal as required.

The Transmitter version can generate and transmit the STM-16/OC-48 signal from an internal source or multiplex the higher-rate signal from either STM-1 or STM-4 (OC-3 or OC-12) signal inputs. In the case of STM-4c and STM-16c (OC-12c or OC-48c), the ST2400A can either generate four STM-4c (OC-12c) tributary signals with PRBS payloads inside an STM-16/OC-48 envelope or generate three tributary payloads of PRBS STM-4c (OC-12c) and insert a fourth from outside the tributary interface (which could contain IP traffic). In the case of STM-16c/OC-48c, the entire (single) payload is PRBS. All applicable SDH/SONET Path Pointer Bytes (H1/H2/H3) are set correctly to indicate the type of payload being carried (STM-4c/STM-16c, OC-12c/OC-48c, etc.).

The Receiver version can receive and demultiplex the STM-16/OC-48 signal and drop either the STM-1 or STM-4 (OC-3 or OC-12) signal to an auxiliary test set, as required.

ST2400A can accept zero, one, or two factory-installed 2.488-Gbps laser transmitter modules and/or zero or one APD receiver module (also referred to as I/O modules). One type of laser transmitter - direct modulated (DM) - is available.

The ST2400A provides electrical input and output clock and data interfaces operating at 2.488 Gbps. Base Transceiver configuration provides 2.488-Gbps electrical interfaces and 155/622-Mbps optical and electrical add/drop tributary interfaces. Transmitter configurations do not include 155/622 optical and electrical drop interface. Receiver configurations do not include 155/622 optical and electrical add interface.

The user can individually enable/disable laser #1 (if installed), laser #2 (if installed) and electrical outputs. Multiple outputs can be simultaneously active.

NOTE: RX will not measure correctly if both TX lasers are enabled and looped back to RX (since RX contains a broadband optical detector which is not wavelength selective).

Three Operating Modes

The ST2400A Transceiver features three operating modes to provide the flexibility you need to test today's advanced STM-16, OC-48, STM-64, OC-192, and DWDM systems. Analysis is done at the SDH/SONET Regenerator Section (Section), Multiplexer Section (Line), and Path levels independent of the payload.

Stand-Alone (Internal) Mode

Where payload testing is not required, or an external 155- or 622-Mbps tributary signal is not available, the ST2400A can operate independently. An internally-generated 2.488-Gbps test signal provides full error performance analysis and reporting of the 2.488-Gbps signal. 1.5-Mbps, 2-Mbps, and 2-MHz external-reference clock signals or an internal clock signal can be used to time the transmitted signal in internal mode. Internal mode is ideal for DWDM SDH/SONET client system testing, where transmission quality test time and cost can be lowered through the use of a high-speed signal.

Active Through Mode

Through Mode allows overhead bytes to be passed or edited while regenerating the received 2.488-Gbps signal. Alarms and errors can also be added to the received signal prior to retransmission. This mode is especially valuable for testing framing synchronization and protection switching and for diagnosing system interoperability problems. 155- or 622-Mbps signals can be dropped from the receiver for path-level analysis on another tester.

Add/Drop (External) Mode

In this mode, the ST2400A transmitter creates the 2.488-Gbps signal from an externally added 155- or 622-Mbps SDH or SONET signal. The external signal can be copied into one or all available payload envelopes in the 2.488-Gbps signal. The ST2400A receiver performs 2.488-Gbps level testing and, as required, drops a tributary signal for path-level analysis by a Tektronix CTS850, CTS710, ST112, or any other 155- or 622-Mbps SDH or SONET test set. Previous investment in lower-speed test equipment is preserved.

Emulation of Real SDH/SONET Systems

The ST2400A provides two features that let the tester emulate real network conditions. First, a 2²³-1 or 2³¹-1 PRBS pattern can be generated to produce a synchronous signal that behaves like live traffic. Second, the optical receiver's decision threshold can be offset to emulate older SDH/SONET network elements that are deployed in the field and which can create interoperability issues when connected to optically amplified systems such as DWDM. By controlling what the ST2400A considers a "one" or a "zero," true system transmission quality can be determined, installed behavior predicted, and optimized in the factory.

DWDM Parallel Channel Test

Because DWDM systems carrying SDH/SONET clients are expected to operate at a transmission quality level of 10^-12 BER or better per ITU-T G.692 and Bellcore GR-2918, per-channel transmission quality test cycles can easily exceed twelve hours. By testing all channels in parallel, system test time can remain constant as channel counts increase from eight to sixteen to thirty-two and beyond. The ST2400R Receiver provides the means for highly cost-effective simultaneous multichannel analysis. A Receiver can measure the transmission performance of each channel of the multiwavelength system, while a ST2400T Transmitter is used to generate the 2.488-Gbps signal, which can be split to multiple inputs of the DWDM system. The Parallel Channel Test is illustrated in the figure below.

DWDM Parallel Channel Test

Help in Lowering Per-Channel Test Time

In addition to using the ST2400A for effective parallel channel testing, the product can also help lower per-channel test time.

Accelerating Low BER Measurement Through Extrapolation

Measuring the low error rates that DWDM systems promise can take a minimum of 11 hours at 2.488 Gbps. The ST2400A provides a way in some applications to save test time by extrapolating to low BERs through offset of the optical receiver's decision threshold.

Improved Test Convenience

If the system has been characterized in design, then many of these tests need not be repeated further down the value chain. The power of the ST2400A is focused on system transmission quality verification during production and installation. For production test, a full remote command set plus LabView and LabWindows CVI, HP-VEE drivers help manufacturing engineers create automated test suites quickly and efficiently. A "pause" feature enables tests to be suspended while rearrangements are made, which allow long-term testing to proceed. Tests can also be automatically resumed after lost power is restored, again saving retest time. Finally, by using the ST2400A in constant wavelength (unmodulated) mode, optical tests such as OSNR and spectral width can be done without the need for an additional laser source.

2.488-Gbps Interface Choices

For manufacturers and installers of DWDM equipment, the ST2400A offers a low-dispersion, long reach 1550-nm laser option that provides enhanced performance. In addition, the low-dispersion optics can be ordered at specific ITU-T G.692 grid frequencies to meet precise requirements. If low-dispersion optics are not required, the ST2400A long-reach 1310-nm optics can be ordered. A dual 1310/1550-nm wavelength option is provided for customers who need flexibility. Finally, a customer can choose to configure units with only 2.488-Gbps electrical I/O. This feature is provided for applications such as laser-driver module tests where optics are not required.

±1-nm Wavelength Tuning

The ST2400A provides the capability to "tune" the wavelength of its 1550-nm laser from its nominal value up or down by one nanometer. This feature allows the user to check adjacent channels on the G.692 frequency grid without purchasing additional specific wavelength lasers. This feature would typically be useful in testing DWDM systems without transponders or in testing transponder-based systems when the transponder is not part of the test setup.

STM-64/OC-192 Tributary Testing

Testing 10-Gbps systems at the line rate requires very expensive test equipment. These systems can be tested more economically at the 2.488-Gbps tributary rate using the ST2400A.

Adheres To The Latest Standards

The ST2400A complies with the latest ITU-T, ANSI, ETSI, and Bellcore recommendations and standards.

Capabilities

STM-16 SDH RS and MS Testing/OC-48 SONET Section and Line Testing

B1, B2, B3 error generation
B1, B2, B3 error measurement
Path REI, path alarms, pattern bit error
J0, J1 Capture, and J0 Edit
RS and MS alarm generation
RS and MS alarm detection
RS and MS layer alarm and error generation

VC4 PRBS Mappings/STS1, STS3c PRBS Mappings
Ability to receive, generate, and modify an STM-4c/STM-16c (OC-12c/OC-48c) Payload (Opt. 41)
External clock input (2 Mbps / 2 MHz) or 1.5 Mbps
User-selectable power-failure recovery mode
Electrical offset of receiver decision threshold
±1-nm wavelength tuning (applies only to 1550-nm lasers)
CW laser source mode
2.488-Gbps electrical I/O
Three-year warranty
Automatic optical receiver shutoff if power exceeds maximum rating
Specific-wavelength G.692 lasers in 1550-nm region
Portable - 11.4 kilograms (25 pounds) maximum weight
A simple menu system
Tributary access at 155 Mbps or 622 Mbps
Easily software switched between SDH and SONET
Integrates with the CTS750 or CTS850 or ST112 for complete "all-rate" SDH or SONET analysis
Wide optical range:

3 dBm to -2 dBm typical output power
-29 dBm to -10 dBm receiver sensitivity

Through Mode with overhead editing, error and alarm injection
Direct user download of software updates
CCITT/ITU G.708, G.709, and GR-253-CORE framing
Complete remote control

RS-232 and GPIB ports and standard printer interfaces
LabView, LabWindows CVI, and HP Vee

Standard tributary interfaces

STM-1e 155 electrical/STS-3 155 electrical
STM-1 155 optical/OC-3 155 optical
STM-4 622 optical/OC-12 622 optical

Interface to Regenerator Section Terminating Element and Multiplexer Section Terminating Element and other test equipment

With firmware version 5.0 (Opt. 42), the following new features are added to capabilities of the ST2400A:

Payload bit error injection/B3 Injection on the TX side (TSE)
B3, Path-REI, payload bit error count measurement on the RX side (TSE ES, SES (SDH only))
Alarm signal status (RX) - Path RDI, Loss of Pointer, Path AIS, Path REI
Path overhead monitor (RX) - Displays value of bytes: J1, B3, C2, G1, F2, H4, Z3/F3, Z4, N1
For the path overhead, C2 byte added at TX (path signal label C2) - Identifies High-Order Path Label Unequipped and High-Order Path Label Mismatch. C2 byte can be set to any value from 0x00 to 0xFF
B3 Path Analysis/J1 Path Trace (displayed as ASCII text)
TX Patterns. PRBS 2³¹-1 and 2³¹-1 Inverted; Fixed (00 to FF)
Pointers. Pointer Value displayed (0 to 782). Pointer Measurement Counts for Positive Pointer Justifications, Negative Pointer Justifications, New Data Flag (NDF)
Extended capability of View History button
APS Switch Time measurement (LOF, LOS durations). APS testing can be performed by causing protection switch through control of K1/K2 bytes and then displaying time to restore frame synchronization. Highly-accurate LOF timer enables this test to be performed with <1-ms resolution
RX mapping (PRBS 2²³-1 and 2²³-1 Inverted; PRBS 2³¹-1 per ITU-T O.151 and 2³¹-1 Inverted per ITU-T O.181, User-defined byte 0x00 to 0xFF)

Characteristics

Transmitter Specifications

2.488-Gbps Long-Reach Laser Options

1310/1550 Wavelength - 1310 nm ±6 nm/1550 nm ±6 nm

Power - 0 dBm (typical)

Spectral Width - 1-nm modulated mode (maximum), 0.3 nm (typical)

Wavelength Stability - ≤±0.1 nm (minimum)

Wavelength Adjustment Range - >±1 nm (uncalibrated)

Side Mode Suppression Ratio - 30 dB

Output Power Variation, CW Mode - ±0.1 dB (typical)

Output Power Variation, Between Modulated Mode and Unmodulated Mode - ±0.5 dB (typical)

Extinction Ratio, Modulated Mode - >10 dB

Optical Waveform - per ITU-T G.691/G.957 and Bellcore GR-253-CORE/GR-2918-CORE

Laser - Class IIIB per 21 CFR 1040.10; Class 3A per IEC 825-1

Category - SDH L-16.1/SONET LR-1

1550 Dispersion Budget - 1800 ps/nm; 2 dB power penalty

Category - SDH L-16.2/SONET LR-2

2.488-Gbps Electrical Outputs

Single-ended clock and data interfaces; unterminated ECL; requires connection to an AC-coupled 50-ohm termination through a bias-tee network supplying current for the ECL outputs; falling edge of output clock coincides with data edge crossing ±100 ps; SMA connectors. ECL specifications: At high output voltage, 25 °C, -0.98 V (min). At low output voltage, 25 °C, -1.95 V (min) and -1.63 V (max).

Tributary Add Interface

Inputs monitored for LOS and LOF, status displayed on front-panel LEDs.

155-Mbps Electrical - 75-ohm BNC CMI per ITU-T G.703 and Bellcore GR-253-CORE

155/622-Mbps Optical -

Wideband input: 1250 nm to 1600 nm

Minimum sensitivity: -28 dBm at 10^-10 BER

Overload limit: -8 dBm at 10^-10 BER per ITU-T G.957 and Bellcore GR-253-CORE

Payload Generation

2.488-Gbps signal framing and multiplexing format to meet ITU-T G.707 and Bellcore GR-253-CORE.

Output Timing -

INT mode: Generated from internal 2.488-Gbps ±20 ppm clock or external 1.544-Mbps, 2.048-MHz, or 2.048-Mbps ref clock

THRU mode: Generated from clock recovered from 2.488-Gbps input

EXT mode: Generated from clock, recovered from 155/622-Mbps add input

Output Signal Structure

1. Active THRU (Through) Mode

Regenerated with recomputed B1, B2 but otherwise unaltered or with user-modified overhead, added defects or added errors from the received 2.488-Gbps input signal using the recovered clock. Jitter transfer from 2.488-Gbps input to output is filtered by a 1-MHz (nominal) bandwidth PLL (typical 0.3-dB jitter transfer).

2. EXT (Terminal) Mode

155- or 622-Mbps tributary signals are added from an external SDH or SONET test set. 2.488-Gbps signal is generated using clock recovered from the add input. Tributary signals added into any 1 of 16 (155 Mbps) or any 1 of 4 (622 Mbps) payload locations or duplicated to fill all payload locations. Unused payload locations are VC-4 structured STM-1 (SDH mode) STS-3C structured STS-3, or 3 x STS-1 (SONET mode) structured with unequipped path overhead (J1=0, C2=0, correct B3, remainder of path overhead = 0). The remainder of the channel payload is bulk-filled with user-selected test pattern (all Zeros, ITU-T 0.181 223-1 PRBS, or 223-1 PRBS). In "all" mode, the tributary overhead is copied to fill all the 2.488-Gbps overhead; in "single" mode, one copy is made for the selected location and all other locations are filled with "unequipped" channel overhead and user-selected test patterns (all Zeros, ITU-T 0.181 223 -1 PRBS or 223-1 PRBS).

3. INT (Stand-Alone) Mode

2.488-Gbps signal is VC-4 structured STM-1 (SDH), STS-3C structured STS-3, or 3 x STS-1 (SONET) structured and filled with test patterns as in External Mode. Default overhead: A1 and A2 are set to F6H and 28H, respectively; J0 byte is set to 1; 15 Z0 bytes and 32 National Use bytes (formerly C1 bytes) are numbered from 2 to 48 (decimal); H1 is set to 6AH and H2 is set to 0AH for valid STS/STM pointers.

B1 contains computed B1 BIP and B2 contains computed B2 BIP; all other overhead set to 00H.

J1 and C2 in path overhead set to 0. B3 BIP set to correctly computed parity. All other path overhead set to 00.

Overhead Editing

Overhead bytes in STS-1, column 1 can be independently set as hex values in the range 00 to FF.

Settable bytes: J0, E1, F1, D1-D3, K1, K2, D4-D12, S1, M1, E2.

Following bytes may not be directly edited: A1, A2, B1, B2, B3, H1-H3.

Clear-text coding and dedicated menus for S1 (Synchronization Status Byte) and K1/K2 (MSP - Multiplex Section Protection/APS - Automatic Protection Switching).

Active THRU (Through) Mode: Overhead bytes are regenerated from the 2.488-Gbps input and can be selectively overwritten.

B1 and B2 are recalculated prior to transmission.

EXT (Terminal) Mode: All bytes except for B1 are inserted from the tributary into one or all envelopes. Settable bytes can be selectively overwritten. B1 and B2 are recalculated prior to transmission.

INT (Stand-Alone) Mode: All bytes are generated internally. Settable bytes can be selectively overwritten.

Defect/Alarm Generation

LOS, LOF, MS-AIS/AIS-L, MS-RDI/RDI-L

Multiple defects and alarms can be set for simulation of real network conditions.

Duration Control -

LOS: 1 to 127 µs (1-µs resolution).

LOF, MS-AIS/AIS-L, MS-RDI/RDI-L: 1 to 127 frames (1 frame resolution).

All: 0.1 to 9.9 s (0.1-s resolution).

Continuous or off.

Interval control: Repeat On/Off.

Injection time: 0.1 to 9.9 s.

Idle time: 1.0 to 30 s.

Resolution (all): 0.1 s.

Error Generation

B1, MS-REI/REI-L, Bit

Error Control -

B1 (BIP-8): Single error or continuous error rate, 2.5E-5 to 0.1E-9.

B2 (BIP-24): Single error in one or all channels or continuous error rate, 1.0E-3 to 0.1E-9.

B3: Single error in one or all channels or continuous error rate 1.0E-3 to 0.1E-9.

MS-REI/ REI-L:

M1 byte is overwritten.

0 to 255 errors per frame inserted in a single frame, continuously or for a duration of 0.1 to 9.9 s.

Resolution: 0.1 s.

Bit errors in selected STM-1/STS-1 tributary or across 2.488-Gbps frame.

Single error or continuous error rates: 1.0E-3 to 0.1E-9.

Interval control: Repeat On/Off.

Injection time: 0.1 to 9.9 s.

Idle time: 1.0 to 30 s.

Resolution (all): 0.1 s.

Other Interfaces -

Clock sync output: 1/8 rate, AC-coupled, 300-mV_pk-pk (minimum), SMA connector.

Frame sync output: 50-ohm, ECL, 25.8-ns pulse width, BNC connector.

Event trigger output: 50-ohm, TTL, 25.8-ns pulse width, BNC connector.

Pulse transmitted for each alarm, error, or overhead event (selectable).

Receiver Specifications

2.488-Gbps Optical Receiver

Type - InGaAs APD.

Input Tolerance - ±20 ppm.

Wavelength - 1250-1600 nm.

Sensitivity - -28 dBm minimum at 10^-12 BER.

Overload - -10 dBm at 10^-12 BER.

Input Reflectance - Better than -27 dBm.

Threshold Offset -

100 settings, uncalibrated.

Initial setting optimized by factory range: ±150 mV (typical).

2.488-Gbps Electrical Inputs

AC-coupled, 50-ohm terminated ECL clock and data interfaces; allow ST2400A to operate error-free when electrical outputs are looped to electrical inputs through a bias-tee termination; data valid when sampled within ±50 ps of center of data eye; SMA connectors. ECL specifications: At high input voltage, 25 °C, -0.98 V (min). At low input voltage, 25 °C, -1.95 V (min) and -1.63 V (max).

Receiver Timing

Analyzer Clock Recovery -

Input frequency range: 2.48832 Gbps ±20 ppm

Input jitter tolerance: Meets Bellcore GR-253-CORE and ITU G.825

155/622-Mbps Output Timing - Derived by dividing the clock recovered from the Analyzer 2.488-Gbps input

Tributary Drop Interfaces - Allows payload analysis using an external test set such as the Tektronix CTS850, CTS710, or ST112

155-Mbps electrical: 75-ohm BNC CMI per ITU-T G.703 and Bellcore GR-253-CORE (at 25 °C ±5 °C)

155/622-Mbps optical:

Wavelength: 1310 nm (1273-1355 nm)

Minimum average power: -15 dBm

Maximum average power: -8 dBm

Category: I-4.1/IR-1

Type: Class 1 laser per IEC 825-1 and 21CFR 1040

Payload Access

A selected tributary (1 of 16 155 Mbps or 1 of 4 622 Mbps) is dropped to an external SDH or SONET test set, using the clock recovered from the 2.488-Gbps input.

Drop overhead: B1, B2 are recalculated; H1-H3 are copied from the selected channel. For 155-Mbps signal, the remainder of overhead is copied from the first three columns of the 2.488-Gbps input. For 622-Mbps signal, the first three columns of the drop signal are copied from the first three columns of the 2.488-Gbps signal; the last nine columns of the remainder are copied from the selected drop channel.

Jitter transfer from 2.488-Gbps receiver to drop interface is filtered by a 1-MHz (nominal) bandwidth PLL, and divided down to the drop rate.

Overhead display: 2.488 Gbps, column 1 of the first STM-1 or STS-3/3c transport overhead bytes can be displayed as hex values.

Displayed bytes: A1, A2, B1, E1, F1, D1-D3, H1-H3, B2, K1, K2, D4-D12, S1, E2.

Clear-text decoding (for easy interpretation of G.707/GR-253-CORE message codes): S1 (Synchronization Status Byte), K1/K2 bytes (APS - Automatic Protection Switching/MSP - Multiplex Section Protection).

Defect and alarm measurement: LOS, LOF, OOF, AIS, MS-RDI/RDI-L.

Status: Displayed as front-panel LEDs with "history" button.

Error Measurement

SDH: B1, B2, B3, MS-REI per G.821 and G.826; unavailability per G.827. Errored Blocks, Errored Seconds, Severely Errored Seconds, Unavailable Ratio, Unavailable Seconds, Errored Seconds Ratio, Severely Errored Seconds Ratio, Consecutive Severely Errored Second Periods, Background Block Errors, Background Block Error Ratio, Total Count, Available Errored Blocks, Available Errored Seconds, Available Background Block Errors, Available Severely Errored Seconds, BER.

SONET: B1, B2, B3, REI-L per GR-253-CORE. Errored Seconds, Severely Errored Seconds, BER, Total Count.

B1, B2, MS-REI/REI-L Status: Displayed as front-panels LEDs with "history" button.

Error Reporting

Test Period - Manual start/stop, timed start/stop, and repeated gate.

Duration: 1 s to 99 days.

Resolution: 1 s.

Report Printout - Comprehensive printout of alarms, errors, performance analysis, test start/stop/pause time. Print on event, at end of test, both, or on demand.

Event Log - Previous tests held in memory for subsequent printing. Alarms, error counts, and S1 (SSM) byte changes logged per second, output-to-printer, or PC as required.

Remote Control

Interfaces -

IEEE-488.2 (GPIB) and RS-232.

Command set: High-level ASCII.

Printer -

Interface: DB-25 translation of Centronics.

Signal: TTL.

Description: Byte serial ASCII printer interface. Follows industry standard.

Connector: DB-25.

Drivers - National Instruments LabWindows CVI or LabView; Hewlett-Packard HP-VEE.

External Reference Timing Interfaces

SDH - 2.048-Mbps or 2.048-MHz SETS input per G.703, except that ST2400A input requires ±40 ppm. BNC connector on front panel.

SONET - 1.544-Mbps BITS input per ANSI T1.101-1994, except that ST2400A input requires ±40 ppm. Bantam connector on rear panel.

General Characteristics

Environmental

Temperature -

Operating: 0 to +40 °C.

Nonoperating: -20 to +60 °C.

Electromagnetic Compatibility -

EC Council Directive 89/336/EEC. Low-Voltage Directive 73/23/EEC.

Emissions Standard EN50081-1: Class A for radiated and conducted emissions.

Laser Safety -

Laser-output key-switch interlock, remote interlock, and front-panel LED indication ensure operator safety.

2.488-Gbps optical output: Class IIIA per IEC 825-1; Class IIIB per 21 CFR 1040.

155/622-Mbps optical output: Class I per IEC 825-1 and 21 CFR 1040.

Power

Source Power -

Voltage requirements (auto-ranging): 110 (90 to 135) V AC or 220 (180 to 270) V AC

Line Frequency - 47 to 63 Hz

Power Consumption - 250 Watts maximum

Connectors

Optical Connectors -

Customer choice of one (1): FC/PC, SC/PC, or ST/PC

Physical Characteristics

Dimensions	cm	in.
Height	11.6	4.5
Width	37.2	14.5
Depth	44.9	17.5
Weight	kg	lb.
Net	11.4	25

Recommended Calibration Interval - One year

Standard Warranty - Three-years parts and labor