STM-1 Optical to STM-1 Electrical Converter

Description

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.

This unit offers five power supply options. Options for the power supply to the equipment include:

  • Dual DC - 48V Inputs (range -18V DC ~ -72V DC), for power input redundancy.
  • Single AC 110V AC to 240V AC, 50 / 60 Hz Inputs.
  • Single -48V DC (range -18V DC ~ -72V DC) Input.

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.
  • 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)
  • 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.

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

Alarms

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

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.

Management Options

  • Serial RS232 Port (COM Port).
  • 10/100BaseT Remote Management over LAN Telnet.
  • 10/100BaseT Telnet over TCP-IP Network.
  • SNMP V2.
  • USB interface.
  • Network Management System (NMS).

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.

Technical Specifications

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)

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

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)

Environmental

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

Mechanical Specifications

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

Application Diagram

Application Diagram

Data Sheet

Data Sheet (PDF)