NCU PA line monitoring module

NCU PA line monitoring module is designed to monitor earth faults and short circuits, as well as to monitor resistance and line break of 100 V loudspeakers.

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Parameter

Value

Rated voltage

48 VDC

Supply voltage range

from 36 to 60 VDC

Maximum power consumption

10 W

Number of controlled loudspeaker lines

4, 8, 12, 16, 20, 24, 28 or 32*

Maximum power per line at 100 V

500 W

Communication interface via Ethernet line (two Ethernet ports, one of which is a reserve)

100BaseTX

Number of ports Ethernet 100BaseTX

Protocol for transmitting information about the state of lines and device

SNMP v.2

Protocol for device configuration

HTTPS

Measurement interval

2 min/ 5 min/ 10 min/ 15 min/ 30 min/ 1 h/ 2 h/ 3 h/ 6 h/ 12 h/ 24 h/ Disabled

Measurement frequency

16 kHz

Display

OLED display with three-line alphanumeric indication

Housing

1U 19"

Electrical protection class by GOST IEC 62368-1-2014

Climatic category under GOST 15150-69

NF4.1

Ambient air permissible temperature range

from - 5 to + 55 ºC

Atmospheric pressure

from 84,0 to 106,7 kPa

Relative humidity at +25 ± 2 °С

no more 80 %

Protection level by GOST 14254-2015 (IEC 60529:2013) (IP code)

IP20

Dimensions

234 х 482 х 43 mm

Maximum weight

2,5 kg

* Depending on the number of connected NCU-REL Relay module for 4 lines

To perform all product functions, at least one NCU-REL relay module must be connected to the NCU. Depending on the number of connected NCU-REL relay modules, up to 32 loudspeaker lines can be monitored. Maximum number of NCU-REL relay modules connected to the NCU is 8 pcs.

NCU PA line monitoring module is used in public address systems in metallurgical, chemical, oil refining, gas and oil-producing industries and similar to them in terms of application, as well as on transport.

Control up to 32 loudspeaker lines;
Periodic measurements with an adjustable interval from 2 minutes to 24 hours;
Monitoring loudspeaker lines for ground faults, short circuits, impedance deviations and line breaks;
Connection interface – 100BaseTX Ethernet;
Ethernet connection redundancy;
OLED display for providing information;
Remote monitoring via SNMP;
Transfer of information about status of device and loudspeaker lines to UMCS monitoring system;
Supply voltage – 48 VDC.

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