STM-1 Optical to STM-1 Electrical converters

VCL Products > STM/SDH Multiplexer > STM-1 Optical to STM-1 Electrical Converter

STM-1 Optical to STM-1 Electrical Converter

Valiant Communications offers STM-1 Optical to STM-1 Electrical converter provides a simple and cost-effective conversion between STM-1 optical interface and STM-1 electrical interface. STM-1 Optical to STM-1 Electrical converter is an interface conversion equipment supplied with one STM-1 electrical (75 Ohms BNC) interface and one STM-1 optical (MSA compliant SFP) interface. 1+1, STM-1 Optical to STM-1 Electrical converter option is also offered and available. STM-1 Optical to STM-1 Electrical converter is a compact solution housed in a 1U high (44mm), 19-inch rack-mountable shelf, which can be installed in any DIN-standard 19-inch rack.

Features and Highlights

1+0, STM-1 Optical to STM-1 Electrical converter version
Dual (1+1), STM-1 Optical to STM-1 Electrical converter version
Standard 75 BNC connector of the STM-1 electrical interface
Standard MSA compliant SFP optical interface. Allows installation of field removable / field upgradable optical SFPs
Short haul (1310nm), long haul (1550nm) and multi mode (850nm) optical SFP modules offered.
Offers multiple distance SFP options on the optical link 15KM, 40KM, 80KM, 120KM, 150KM, 200KM and 260KM.
High reliability, complies to ITU-T G.703 and G.957
Low power consumption
Supports local and remote loop-back on electrical or optical interfaces for system diagnostics.
Simple operation and maintenance.
75 Ohms compliant with ITU-T G.703 and Telcordia GR-253 155Mbps electrical interfaces (BNC connector).
ITU-T G.783 compatible loss of signal detect.
STM-1 Electrical Interface - handles over 12.7dB of cable loss.
SFP - LC optical interface.
SFP with DDMI Interface - for read back of transmit and received optical power.
Class 1 laser safety.
Compliant with ITU-T G.957 STM-1.

Management options:

Serial RS232 Port (COM Port)
USB interface (COM Port)
10/100 BaseT Ethernet Port allows the equipment to be remotely accessed using Telnet over a TCP-IP Network
SNMP V2 monitoring
Network Management System - Windows XP and Windows 7 compatible
Network Management System (NMS)

Alarms

LOS (Loss of Signal).
AIS (All Ones Alarm).
Optical Power Input High Alarm.
Optical Power Input Low Alarm.
SNMP V2 Traps.

Compliance

G.703: Provides one standard STM-1 electrical interface complying with G.703
G.707: Network node interface for the synchronous digital hierarchy (SDH)
G.781: Structure of Recommendations on equipment for the Synchronous Digital Hierarchy (SDH)
G.782: Types and characteristics of Synchronous Digital Hierarchy (SDH) equipment
G.783: Characteristics of Synchronous Digital Hierarchy (SDH) equipment functional blocks
G.813: Timing characteristics of SDH equipment slave clocks (SEC)
G.825: Control of Jitter and Wander within Digital Networks Which are Based on the Synchronous Digital Hierarchy (SDH)
G.957: Provides one standard STM-1 optical interface complying with G.957
G.958: Digital line systems based on the Synchronous digital hierarchy for use on optical fiber cables

Loop-backs

STM-1 Electrical local loop-back.
STM-1 Electrical remote loop-back.
STM-1 Optical local loop-back.
STM-1 Optical remote loop-back.

Security and Protection

Secured Access via SSH V2.
Password Protection: Password Protection in compliance with the mandatory clauses of the GR-815-CORE-2 specifications for secured access control.
Security Audit: All access logs for up to 30 days are maintained for security audit purposes.
Logging: Maintains a log of all successful and un-successful attempts. Logged information includes the ID and the IP address of the accessing entities. Alerts the administrator if the un-successful logging attempts exceed 5.

STM-1 Electrical Interface

Data Rate	155.52 Mbps
Standard	ITU-T G.703 Compliant
Impendence	75 Ohms resistive
Peak to peak voltage (signal)	1 ± 0.1V
Rise time between 10% and 90% amplitudes of the measured steady state amplitude	< 2 ns
Maximum Attenuation	12.7 dB at 78 Mhz
Jitter	As per ITU-T G.825
Line Code	CMI
Physical Connector	BNC (Female)

Power Supply

Input voltage	Dual DC - 48V Inputs (range -18V DC ~ -72V DC) Single AC 110V AC to 240V AC, 50 / 60 Hz Inputs Single -48V DC (range -18V DC ~ -72V DC) Input.
Power consumption	< 6 W (1+0 version) < 8 W (1+1 version)

Mechanical Specifications

Rack Mounting	Standard 19 Inch. DIN Rack
Height	42 mm.
Depth	125 mm.
Width	205 mm.
Weight	1.5 kg

STM-1 Optical Interface

Data Rate	155.52 Mbps
Standard	ITU-T G.703 Compliant
Coding	NRZ
Connector	LC
Light source	Laser Diode
Wave length options	850nm / 1310nm / 1550nm
Transmission Type	Dual Fiber (standard) Single Fiber Bi-directional (optional)
Automatic Laser Shut Down Option	Provided - User selectable option
Transmit power options - S 1.1	-11.5 dBm (1310nm)
Transmit power options - L 1.1 / L 1.2	-2.5 dBm (1310nm / 1550nm)
Receive sensitivity options - S 1.1	-31 dBm (1310nm)
Receive sensitivity options - L 1.1 / L 1.2	-34 dBm (1310nm) / -38 dBm (1550nm)
Receiver overload - S 1.1	-8 dBm (1310nm)
Receiver overload - L 1.1 / L 1.2	-10 dBm (1310nm / 1550nm)
Section loss - S 1.1	0 - 12 dB
Section loss - L 1.1 / L 1.2	10 - 28 dB
Automatic Laser Shut Down Option	Provided - User selectable option

Environmental

Working temperature	-50C ~ +500C for operation
Relative humidity	< 90% (Non condensing)
Altitude	Sea level to 5000 meters

Application Diagram

Valiant Communications is an ISO 9001:2015, ISO 10001:2018, ISO 14001:2015, ISO 27001:2013 and ISO 45001:2018 certified equipment manufacturer.

STM SDH STM-1 Optical to STM-1 Electrical Converter

VCL Products > STM/SDH Multiplexer > STM-1 Optical to STM-1 Electrical Converter

Features and Highlights

Management options:

Alarms

Compliance

Loop-backs

Security and Protection

STM-1 Electrical Interface

Power Supply

Mechanical Specifications

STM-1 Optical Interface

Environmental

Application Diagram

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STM-1 Optical to STM-1 Electrical Converter