SM21 | Enatel - DC Power Solutions | Smart. Power. Design.

SM21 Supervisory Module

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PC
front panel or
pc setup.

LCD
LCD display of
parameters.

RS232
rs232 for remote
communication.

Specifications	View Brochure

Input
Voltage:	24V: 16-60V DC, 48V: 19-75V DC
Current:	24V: <160mA maximum, 48V: <130mA maximum

Interface
Display:	2 line x 20 character multi-lingual alpha numeric display.
Communications:	Serial: 2x RS232 ports. Front panel (DB9) interface for local PC interface. Rear mounted (DB9) for remote serial/modem communications. Relay: 10x alarm and control relays. Relays able to be mapped for customized alarm settings.
Indicators:	3x LED’s: Green - power on /monitor OK. Yellow - non urgent alarm. Red - urgent alarm. Audible: 90dBA buzzer mappable to user defined conditions.
Controls:	3x push buttons for parameter setting on front panel.
Signal Inputs:	Serial bus for rectifier control and interface to peripheral modules. Fuse fail. 2x spare digital inputs. 2x temperature sensors. 2x current shunts. 1x DC voltage inputs.
Alarms:	10x alarm relays.
Alarm Contacts:	0.3A 100V volts free changeover contacts.
Default Alarm Map:	Urgent. Non-urgent. Monitor fail. LVD1 control. LVD2 control.

Physical
Dimensions W, H, D:	483mm (19” rack mount), 44mm (1U), 110mm
Weight:	0.75kg
Connections:	Relay outputs, mini combicon to accept 1.5mm csa wire. Serial communications to rectifier shelf & peripheral devices - RJ45. RS232 Serial ports - DB9.
Operating Temperature:	-25 to +55°C
Storage Temperature:	-50 to +85°C

Compliances
Radiated Emissions:	EN55022
RF Susceptibility:	EN55024

Versions
SM21-24:	24V
SM21-48:	48V

Due to product development specifications are subject to change without prior notice.
Pictures may be representative, actual products may differ.

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