Welcome to Studio Technologies, Inc. -- designers and manufacturers of video, audio, and fiber optic products for use worldwide in broadcast, studio, stadium, and corporate environments.

Model 400 SDI-Over-Fiber Transport System

Introduction

Model 400 SDI-Over-Fiber Transport Rack-Mount System

The Model 400 SDI-Over-Fiber Transport System is a high-performance, cost-effective, rack-mount solution for distributing digital video signals over short and medium distances. The system is compatible with all common broadcast serial digital video formats and is suitable for use in remote trucks, live-event video distribution, and fixed links associated with broadcast and production facilities. Several Model 400 versions are available, providing a range of input and output configurations. This document features the Model 400-12T and Model 400-12R units.


Model 400 General Features
Multi-channel electrical-to-optical (E2O) and optical-to-electrical (O2E) SDI transport
Twelve format-independent SDI data paths over four single-mode optical fibers
Supports 3G (SMPTE 424M), HD (SMPTE 292), and SD (SMPTE 259M) SDI, as well as DVB-ASI
Fiber transport based on the SMPTE 297 standard
Dual power capability: AC mains or DC; when both sources are present system is AC mains powered and DC supply acts as a backup
Ethernet port provides system configuration and performance monitoring using web pages or SNMP
Front-panel features include status display, navigation buttons, power switch, and LED indicators
"1U" enclosure weighs less than 6 pounds (2.7 kg)

Model 400-12T Features
Twelve SDI inputs, each with re-clocked loop-through output
Four single-mode optical outputs, each transmitting three SDI signals using WDM/CWDM multiplexing
Configurable laser on/off output control

Model 400-12R Features
Four single-mode optical inputs, WDM/CWDM de-multiplexed to 12 re-clocked SDI signals
Monitoring of optical receive levels
Twelve SDI output channels, each with two independently buffered outputs

Go to Product Information & Images
Go to Overview
Go to Specifications

Product Information & Images
Files listed here are the most-recent issues unless otherwise noted; full history product information can be found on the Documentation page.
Data Sheet
SNMP Agent Guide (for MIB file, go to Documentation page)
Introduction and Help Menu Training Videos
Front Panel

Model 400 SDI-Over-Fiber Transport System

Model 400-12T E2O Unit

Model 400-12R O2E Unit

Top: Model 400 SDI-Over-Fiber Transport System Front View (common for all versions)
Middle and Bottom: Model 400-12T and Model 400-12R Back Views



Overview

The Model 400 SDI-Over-Fiber Transport System consists of single-rack-space (1U) units that are factory configured from among a number of available choices. The broad range of configurations allows the needs of specific applications to be directly supported. For example, the Model 400-12T is a 12-channel electrical-to-optical (E2O) unit, while the Model 400-12R is a 12-channel optical-to-electrical (O2E) unit. For "transceiver" applications the Model 400-3T/3R provides three channels of electrical-to-optical (E2O) and three channels of optical-to-electrical (O2E) transport. The front panel of each unit features a day-/night-readable color backlit display, menu navigation buttons, status LEDs, and power on/off switch. The back panels include connections for AC mains and DC power, ST or SC (optional) optical connectors, BNC connectors, and an RJ45 jack for the Ethernet interface.

Technology

The Model 400 System uses a novel hardware implementation to transport up to 12 SDI signals over four single-mode optical fibers. The Model 400-12T's 12 SDI inputs are arranged as four groups, with each group of three SDI signals being transported over one fiber at wavelengths of 1310, 1490, and 1550 nm. In typical applications the launch power is such that signals can be transported over a minimum distance of 10 kilometers.

SDI input signals can be SD (270 Mb/s), HD (1.485 Gb/s), or 3G (2.97 Gb/s). 3G signals can be in either Level A or Level B format. The inputs also support video signals in the DVB-ASI (270 Mb/s) format. Each of the Model 400's SDI input channels is independent, allowing any combination of rates/formats to be transported.

Associated with each Model 400 SDI input channel is a re-clocked and buffered loop-through output. These can be extremely useful, allowing a signal source to be routed to another input on the Model 400 or a related piece of equipment.

Typically a Model 400-12R receives the four single-mode fiber signals that originate in a Model 400-12T. Each optical input is de-multiplexed into three optical channels which are converted into electrical signals. Each of these SDI signals are then re-clocked and sent to two independent SDI output drivers. As such, the Model 400-12R has 24 (12 pairs) of BNC output connectors.

Dual Power Capability

Model 400 units allow an AC mains source of 100-240 V, 50/60 Hz to be directly connected. They can also be DC powered using a 10-18 volt source that is connected via a broadcast-standard 4-pin XLR connector.

If both AC and DC power sources are connected to a Model 400, the unit will be powered by the AC mains supply. Only if the AC mains source fails will a load be placed on the DC source. This allows a source of DC, typically a battery pack, to serve in a backup capacity. With this arrangement normal SDI-over-fiber transport operation can continue even if AC mains power is lost.

Remote Monitoring and Configuration

The Model 400 has an embedded web server that allows the user to monitor system status through any web-enabled device such as a personal computer or smartphone. System status can also be communicated using SNMP, making it possible to integrate the unit's monitoring information into a networked alarm and control software application.

The Model 400's status screen lets a user or supervisor check for the presence of AC and DC power sources as well as individual SDI input channel status, signal rate, and whether the optical transmitters are enabled. The optical output power of each electrical-to-optical (E2O) channel is reported directly in dBm. The optical receive power (in dBm) of each optical-to-electrical (O2E) channel is also displayed. This is a particularly useful feature for remote system troubleshooting.

The embedded web server also provides a configuration menu allowing a variety of monitoring parameters to be set. These include alarms for loss of AC or DC power, over-temperature, and low optical transmit and receive levels. Additional menu screens provide access to SNMP, network IP address, and front-panel display configurations. Advanced features include the ability to remotely update the Model 400's system firmware via the Ethernet connection.

Simple Installation

While the Ethernet-accessed monitoring and configuration functions enhance the utility of the Model 400 they are not necessary for SDI-over-fiber transport operation. Model 400 units will deliver reliable, high-quality performance with no other user actions except for making SDI-over-coaxial cable, fiber, and power connections. All back-panel connectors are clearly labeled for simple, fast, and intuitive use. And the front-panel display provides direct access to the unit's most important status information.

Other available configurations include:

Model 400-6T/6R provides both electrical-to-optical (E2O) conversion (6 SD/HD/3G SDI inputs to 2 single-mode optical outputs) and optical-to-electrical (O2E) conversion (2 single-mode optical inputs to 6 SD/HD/3G-SDI outputs). BNC SDI input, loop through, and output connectors (24 total); ST optical input and output connectors (4 total).
Model 400-9T/3R provides both electrical-to-optical (E2O) conversion (9 SD/HD/3G-SDI inputs to 3 single-mode optical outputs) and optical-to-electrical (O2E) conversion (1 single-mode optical input to 3 SD/HD/3G-SDI outputs). BNC SDI input, loop through, and output connectors (24 total); ST optical output and input connectors (4 total).
Model 400-3T/9R provides both electrical-to-optical (E2O) conversion (3 SD/HD/3G-SDI inputs to 1 single-mode optical output) and optical-to-electrical (O2E) conversion (3 single-mode optical inputs to 9 SD/HD/3G-SDI outputs). BNC SDI input, loop through, and output connectors (24 total); ST optical output and input connectors (4 total).
Model 400-6T provides electrical-to-optical (E2O) conversion of 6 SD/HD/3G-SDI inputs to 2 single-mode optical outputs. BNC input and loop through connectors (12 total); ST optical output connectors (2 total).
Model 400-6R provides optical-to-electrical (O2E) conversion of 2 single-mode optical inputs to 6 SD/HD/3G-SDI outputs. ST optical input connectors (2 total); BNC SDI output connectors (12 total).
Model 400-3T/3R provides both electrical-to-optical (E2O) conversion (3 SD/HD/3G-SDI inputs to 1 single-mode optical output) and optical-to-electrical (O2E) conversion (1 single-mode optical input to 3 SD/HD/3G-SDI outputs). BNC SDI input, loop through, and output connectors (12 total); ST optical output and input connectors (2 total).

Specifications
Ethernet Interface:
Type: 10/100, auto MDI/MDI-X
Connector: RJ45 (8-pin modular)
Status LEDs: 2, link and activity
Supported Protocols: HTTP, SNMP, DHCP, DNS
Display: vacuum fluorescent (emissive) with color LED backlighting
Power Inputs:
AC Mains: 100 to 240 V, 50/60 Hz, 24 W maximum, varies by configuration
AC Mains Connector: 3-blade, IEC 320 C14-compatible (mates with C13)
DC: 10 to 18 V, 1.6 A maximum, varies by configuration
DC Connector: 4-pin male XLR-type
Dimensions (Overall):
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
11.50 inches deep (29.2 cm)
Mounting: one space (1U) in a standard 19-inch rack
Weight: 5.5 pounds (2.5 kg)
SDI Inputs:
Quantity: up to 12, in groups of three depending on ordered configuration
Data Rate: 270 Mb/s to 2.97 Gb/s
Supported Standards: 3G-SDI (SMPTE 424M), HD-SDI (SMPTE 292), SD-SDI (SMPTE 259M), DVB-ASI (AES3 digital audio transport not supported)
Connector: BNC, 3G-SDI optimized, gold plating on center pin, per IEC 61169-8 Annex A
Type: unbalanced
Impedance: 75 ohms
SDI Loop-Through Outputs:
Quantity: one associated with each SDI input
Source: re-clocked copy of input
Data Rate: 270 Mb/s to 2.97 Gb/s
Supported Standards: 3G-SDI, HD-SDI, SD-SDI, DVB-ASI
Connector: BNC, 3G-SDI optimized, gold plating on center pin, per IEC 61169-8 Annex A
Type: unbalanced
Impedance: 75 ohms
Level: 800 mV p-p, nominal
Optical Outputs:
Quantity: up to four, depending on ordered configuration
Compliance: SMPTE 297 (as applicable)
Fiber Type: single-mode
Connector: ST PC (SC optional)
Multiplexed Wavelengths: 1310 nm (FP), 1490 nm (DFB), 1550 nm (DFB)
Launch Power: –3 dBm nominal @ 1310 and 1550 nm; –1 dBm nominal @ 1490 nm
Typical Fiber Length: 10 km minimum
Optical Inputs:
Quantity: up to four, depending on ordered configuration
Compliance: SMPTE 297 (as applicable)
Fiber Type: single-mode
Connector: ST PC (SC optional)
Wavelengths Supported: 1310 nm, 1490 nm, and 1550 nm
Receive Sensitivity: –17 dBm, nominal @ 2.97 Gb/s
Maximum Input Power: –3 dBm, nominal
Digital Video Outputs:
Quantity: up to 24 (organized as 12 pairs), depending on ordered configuration
Data Rate: 270 Mb/s to 2.97 Gb/s
Supported Standards: 3G-SDI, HD-SDI, SD-SDI, DVB-ASI
Connector: BNC, 3G-SDI optimized, gold plating on center pin, per IEC 61169-8 Annex A
Type: unbalanced
Impedance: 75 ohms
Level: 800 mV p-p, nominal

Specifications subject to change without notice.