Signal Distribution: Signal Distributors, Signal Multiplexer and Signal Converters

Signal Distribution and Signal Conversion
Meinberg offers a wide range of signal distribution systems. Among them are signal distributors in space-saving 19 inch / 1U housings with up to 24 outputs and signal distributors in 19 inch / 3U subracks (BGT), which can be equipped with up to 64 outputs. In addition to our server rack mount devices, we also offer a variety of converters and signal distributors in space-saving DIN rail housings.

Digital signals (TTL, DCLS Time Codes such as IRIG, AFNOR ...), fiber-optic signals (via optical fiber), telecom references (E1) and analog signals, such as amplitude modulated time codes and low phase noise frequencies, are distributed or converted with one SDU-R or several LNO modules in one signal distribution unit.

Our signal distribution systems enable the multiplication and distribution of a signal from a stable and highly accurate source to a large number of devices - even over longer distances (multimode and singlemode fiber converters).

SDU (Signal Distribution Units)
We differentiate between basic signal distribution units (such as the SDU/TTL and SDU/SIN) on the one hand and redundant switching units (SDU-R) that feature dedicated switching logic (RSC) on the other.

The basic signal distribution units can have two entirely discrete input signals - in this case, if an upstream signal generator develops a fault, the system is unable to switch the signal automatically and no alerts are issued, although the error relay will switch to an error state if the input signal is unavailable.

These basic SDU systems are available with either 12 or 24 outputs (TTL, sine wave, fiber-optic). They can feature two distribution modules with discrete signal inputs (e.g., SDU/TTL-12-12) and a separate error relay for each of the distribution modules. It is also possible to integrate two different signal types (e.g., SDU/TTLin-12/FOin-12). One input signal can be distributed to 24 outputs (e.g., SDU/SIN-24). A 24-output system also uses two distribution modules, but both draw from a single input signal.

SDU-R (Redundant Signal Distribution Units)
Our SDU-R systems have an integrated RSC switching mechanism and an error input. The internal switching mechanism is capable of detecting errors in the input signal and independently switching to an alternate input signal—at least if so desired and configured. Error signals from the upstream master system can also be sent to the switching mechanism via the error input in order to trigger a switchover.

SDU-R systems can also be configured to have the switching mechanism only trigger manually.

SDU-R systems are available with 16 (2 x 8) outputs (TTL, sine-wave, fiber-optic).

Redundant Power Supplies
Both system types (SDU and SDU-R) are available with redundant power supplies.

Fiber Optic Converter
Our compact signal converters in DIN rail housings allow signals to be converted on the one hand and transmitted over long distances on the other. Our fiber-optic converters can transmit a digital or analog input signal over several FST ports over 2,000 meters (multimode) or even over a distance of 10 kilometers (single mode), via fiber-optical lines. In addition, our fiber-optic converters also ensure high immunity to electromagnetic or electrical interference.