5
Basic features
Basic features
The HWg-SH4 control unit contains two independent channels (modules) for door control
Each channel contains:
• 3 binary inputs (door contact, exit button, lock contact, etc.)
• 1 output relay switch (max. 50V/1A)
The SH4 unit can connect additional HWg-SH4e and HWg-SH4s units (max.16 units):
• HWg-SH4e units contain two independent channels (modules) for door control
• HWg-SH4s units contain one channel (module) for door control
• HWg-SH4s and HWg-SH4e units can be combined in one system
• Max. number of door channels (modules) controlled by one HWg-SH4 device is 34,
including two HWg-SH4 channels
Online / Offline mode
• Offline mode uses only the internal database of RFID tags
• RFID tags database can be managed through a built in web interface in offline mode
• Internal database allows its administrators to manage 2000 user RFID tags
Online mode uses central management server application HWg-DCD
• RFID tags database is stored simultaneously in the central management application
and in HWg-SH4 for use in case the connectivity is lost
Supports connecting two independent RFID readers (with or without keypad)
• Support of RFID readers with Wiegand or RS-232 interface
• An option to control LED or buzzers in the reader
• Door to be opened can be selected on the keypad
SNMP for remote supervising in monitoring centers supports sending of SNMP traps in case
of any action (door opening, unlocking, card read)
12V power supply input
HWg-SH4 can be installed to 19“ racks into its individual 1U holder or to a compound holder,
together with other HW group devices