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STM-1 Optical to STM-1 Electrical Converter |
Description
Valiant’s 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:
- 110~240 VAC 50/60 Hz plus -48VDC Inputs (range
-18VDC~-72VDC), for power redundancy.
- Dual DC - 48V Inputs (range -18V DC ~ -72V DC), for power
input redundancy.
- Dual AC 110V AC to 240V AC, 50 / 60 Hz Inputs, for power
input redundancy.
- Single AC 110V AC to 240V AC, 50 / 60 Hz Inputs.
- Single -48V DC (range -18V DC ~ -72V DC) Input.
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Application Diagram
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 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 |
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Standard |
ITU-T G.703 Compliant |
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Impendence |
75 Ohms resistive |
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Peak to
peak voltage (signal) |
1
± 0.1V |
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Rise time between 10% and 90%
amplitudes of the measured steady state amplitude |
< 2 ns |
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Maximum Attenuation |
12.7 dB at 78 Mhz |
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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.957 STM-1 |
| Coding |
NRZ |
|
Connector |
LC |
| Light
source |
Laser
Diode |
|
Wave length options |
850nm / 1310nm /
1550nm |
|
Transmission Type |
Dual
Fiber (standard)
Single Fiber Bi-directional (optional) |
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Automatic Laser Shut Down Option |
Provided - User selectable option |
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Transmit power options - S 1.1 |
-11.5
dBm (1310nm) |
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Transmit power options - L 1.1 / L 1.2 |
-2.5
dBm (1310nm / 1550nm) |
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Receive sensitivity options - S 1.1 |
-31
dBm (1310nm) |
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Receive sensitivity options - L 1.1 / L 1.2 |
-34
dBm (1310nm) / -38 dBm (1550nm) |
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Receiver overload - S 1.1 |
-8 dBm
(1310nm) |
|
Receiver overload - L 1.1 / L 1.2 |
-10
dBm (1310nm / 1550nm) |
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Section loss - S 1.1 |
0 - 12
dB |
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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 110~240 VAC 50/60 Hz plus -48VDC Inputs
(range -
18VDC~-72VDC)
- Dual DC -48V Inputs (range -18V DC ~ -72V DC)
- Dual AC 110V AC to 240V AC, 50 / 60 Hz Inputs
- Single AC 110V AC to 240V AC, 50 / 60 Hz Inputs
- Single -48V DC (range -18V DC ~ -72V DC)
Input |
| Power consumption |
- < 8 W (1+0 version)
- < 12 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 |
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