Universal supervisory system

The universal supervisory system (UDZ) has been designed for monitoring of operating conditions in telecommunication technologies and their remote checking. It enables measuring of temperature at several places inside telecommunication switchboards (1–3 external sensors, 1 internal sensor in UDZ), monitoring of a state in 16 logic inputs with adjustable sensitivity to 5 V, 12 V, 24 V or 48 V, switching of 16 logic outputs by switching relay. Detection of the current state and configuration of equipment can be carried out over Ethernet interface by www browser. The states if inputs and outputs can be transmitted to the control centre by SNMP. The objective of the UZD usage is its integration into the superior SUPERVISORY SYSTEM and simplification of remote diagnosis of telecommunication systems failures.

The main advantages of UDZ

  • Electronic system of the remote supervision designed for monitoring of conditions inside the telecommunication technologies
  • 16 logic inputs, 16 logic outputs, internal and external thermo-sensors
  • Communication and control by standard protocols (HTML, SNMP, NTP, SYSLOG)
  • Possibility of a simple integration into central supervisory systems


Basic technical description

UDZ is built in the box designed for installation into 19“ rack, height 2U and depth 35 cm. Weight is 5,5 kg.

Front panel

On the front panel there are two Ethernet connectors (one for plugging into the system, the other one for connecting of the service technician), LED indicating the current state of inputs, outputs and UDZ itself, and alphanumeric LCD display displaying details of the current UDZ state.

Power supply

In the standard version UDZ is designed for the 230 V AC backed-up power supply , optionally the internal switching power source can be replaced by DC-DC converter for input voltage 48 V (36–72 V) DC. The power intake of the entire UDZ does not exceed 50 W, typically around 20 W (for both 230 V AC power and also 48 V DC power).

Logic inputs

Logic inputs are defined for scanning the voltage state of external equipment and they are galvanically separated by optocouplers both in direction to UDZ, and between each other. UDS sensitivity can be set by shorting jumpers for 5 V, 12 V, 24 V or 48 V.

Logic outputs

Logic outputs are realized by switching relays. Maximum switching current is given by the applied relays, for 230 V AC version it is 6 A and for 48 V DC version it is 4 A. If higher currents are required it is possible to use external contactors.

External thermo-sensors

External thermo-sensors are designed for monitoring temperatures inside telecommunication switchboard, where UDZ is installed. The resolution of thermo-sensors is limited by SW to 1 °C and the absolute accuracy is 2 °C.

Basic technical parameters

Dimensions 19“ module, height 2U, depth 35 cm (without connectors), width (without
holders) 43 cm, depth 40 cm ( with connectors?), height 13 cm
Supervisory system is designed for the installation into 19“ (rack) of
the switchboard.
Weight 5,5kg
Cover IP20
Working temperature range 0 až 45 °C
Storage temperature range –20 až 60 °C
Humidity 20 to 80 % non-condensing
Rated input voltage 230 V ±10 %, 50Hz
Input current maximum 1A
Logic inputs galvanically separated, sensitivity optional 5 V, 12 V, 24 V or 48 V
Logické výstupy 230 V střídavých, max. 6 A nebo 48 V stejnosměrných max. 4 A
LAN (ethernet) – 2× RJ45
230 V intake – EURO plug
48 V intake optional
Logic inputs – 2 two-pin plugs PA256/7, cable plugs PA256/7,62 are a part
of a supply
Logic outputs – 230V AC, max. 6A – fie-pin plug PA256/7,62, 48 V DC –
four-pin plug PA256/7,62 – the conductor cross section max. 2,5 mm2,
cable plugs PA256/7,62 are a part of a supply
External thermo- sensors resolution 1 °C, absolute accuracy 2 °C
Grounding  terminal clip

This post is also available in: Czech