SDU-R: Redundant Frequency Sine or TTL Distribution Unit

The SDU-R is a distribution unit, designed to provide sine wave signals with low additive phase noise, TTL output signals via BNC female connectors or fiber optical signals via F-ST connectors on the system's rear panel.

In addition, a redundant power supply can be used for the respective application via various power supply modules. The signal distributor is used in areas where high reliability of the output signals is required.

Some SDU-R model variants:

SDU-R/SIN/NET/AD10-AD10:
Rackmount distribution unit for 16 x 1-25 MHz sine outputs with redundant AC/DC power supplies
SDU-R/TTL/NET/DC20-DC20:
Rackmount distribution unit for 16 x TTL outputs, redundant low DC power supplies
SDU-R/FO/NET/AD10-AD10:
Rackmount distribution unit for 16 x fiber optical outputs (850nm, multimode) with redundant AC/DC power supplies

Key Features Product Description Characteristics Downloads More Images

Key Features

16 outputs in an 1U chassis
Internal switchover, 2 Error inputs and alarm relay
Status LEDs of power supplies and switch card (selected input source, remote function, initialisation)
Compact 1U housing, 19-inch rack mount option
Redundant input signal and power supplies
System monitoring via Meinberg Device Manager

Product Description

How it works:
The redundant SDU-R signal distribution unit multiplies and distributes the input signals that are available at one or two inputs. When the device is used in redundant mode, the internal switching logic monitors both signals and automatically selects an input for distribution.

Different switching modes (Auto/Manual) are selectable by switches on the front panel. In the automatic mode the two signal inputs are monitored and switched over by an internal switching logic. Switching is done in case of signal loss at the input socket or by indicating an error of the master system at the error input (connector: X1). In manual mode, the selected input is switched through directly to the outputs.

Meinberg Device Manager
The system can be configured remotely via network connection using the Meinberg Device Manager monitor program.

The following parameters can be read out:

Status of both inputs
Status of all 16x outputs
Status of both power supply modules
System Temperature
Selection of the input signal

Available SDU-R models:

SDU-R/SIN/NET
Redundant signal distribution unit with 2x 1-25 MHz sine wave inputs and 16 x 1-25 MHz sine outputs
SDU-R/TTL/NET
Redundant signal distribution unit with 2x TTL inputs and 16 x TTL outputs
SDU-R/FO/NET
Redundant signal distribution unit with 2x fiber optical inputs and 16 x fiber optical outputs (850nm, multimode)
SDU-R/TCM/NET
Redundant signal distribution unit with 2x Time Code AM inputs and 16 x Time Code AM outputs
SDU-R/TTL-in/FO/NET
Redundant signal distribution unit with 2x TTL input and 16 x fiber optical outputs (850nm, multimode)

Characteristics

Input signal	1 - 25 MHz sine wave, - 8 to + 8 dBm, BNC female
Output signal	1 - 25 MHz sine wave into 50 Ohm, BNC female Gain 0 dB
EMC Directives	IEC/EN 61000-6-3 Emission standard for residential, commercial and light-industrial environments IEC/EN 55032 Electromagnetic Compatibility of Multimedia Equipment IEC/EN 61000-6-2 Immunity standard for industrial environments IEC/EN 55024 Immunity standard for information technology equipment - limits and methods of measurement
Operating Voltage	100-240 V DC / 100-240 V AC (50/60 Hz) or 20-60 V. DC
Form Factor	19 inch multipac metal case 1U/84HE
Physical Dimensions	483mm x 43,7mm x 285mm (width x height x depth)
IP Rating	IP30
Supported Temperature	Operational: 0 - 50 °C (32 - 122 °F) Storage: -20 - 70 °C (-4 - 158 °F)
Supported Humidity	Max. 85 % (non-condensing) at 40 °C
Technical Support	Meinberg offers free lifetime technical support via telephone or e-mail.
Warranty	Three-year warranty
RoHS Status of Product	This product is fully RoHS-compliant.
WEEE Status of Product	This product is handled as a B2B (Business to Business) category product. To ensure that the product is disposed of in a WEEE-compliant fashion, it can be returned to the manufacturer. Any transportation expenses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself.