VERIDT INC · Middleton, WI 53562
1 5
www.veridt.com
2022
• T E C H N I C A L N O T E •
Verify Identify
High Assurance Configuration with EWAC
Veridt Encrypted Wiegand and Communications (EWAC)
Interface
The EWAC interface provides a bi-directional RS-485 interface to the PACS panel and a network interface that
can allow a secure server to control door access. Install the EWAC interface in or near the PACS panel.
J3 Power
Pin 1: GROUND
Pin 2: +12 VDC
J4 Stealth Reader
Pin 1: GROUND
Pin 2: +12 VDC
Pin 3: Digital IO
Pin 4: RS-485 +
Pin 5: RS-485 –
J5 Wiegand
Pin 1: GROUND
Pin 2: WIEGAND 0
Pin 3: WIEGAND 1
Pin 4: Digital IO
J6 Network
Ethernet to LAN
The EWAC unit provides power directly to the reader. The EWAC unit requires 100 mA at 12 VDC. This means
the total power requirement is the reader current requi 100 mA. Ensure the power supply can provide
sufficient power
Note:
Most PACS controllers DO NOT have adequate power both reader and the
EWACS. Use an appropriately sized power supply for the PACS panel. For
example, for an eight-door panel, the power supply must be rated for at
least 6 A (apply a 50 percent margin when sizing the power supply).
Tamper Switch
The optional tamper switch allows the PACS to monitor the installed state of the reader.
The tamper switch is closed when the reader is attached to the wall and open when the reader is removed from
the wall. When the switch is closed, the tamper switch input signal is switched to GROUND. When the switch is
open, pull the input signal to a logical High state by the PACS to detect the tamper condition.
The tamper switch is Normally Open (NO) and rated at 28 VDC @ 500 mA.
Communications Interface
To configure the EWAC board with an IP address on the same subnet, download and install the Lantronix device
installer on a computer on the same network as the EWAC board. The Device Installer applications is currently
located at https://www.lantronix.com/products/deviceinstaller
Figure 6 • EWAC Interface Unit
#121
Installation Guide
Stealth Readers
