Overview

The HID Mercury EP4502 (now largely succeeded by the LP4502) is a high-performance intelligent controller designed for large-scale access control systems. Built on a Linux-based platform, it supports two doors locally and can scale to manage up to 64 access points.

Specifications

Model Number:  EP4502

Brand:  Mercury

Alt Part Number(s):  EP4502

Product Type:  Controller Board

Technical Description

Brand:  Mercury

Model Number:  EP4502

Ethernet:  10/100Base-T

Cardholder Capacity:  Supports up to 2,000,000 user records

Transaction Buffer:  Stores up to 50,000 events

Communication:  Primary 10/100 Ethernet port; supports IPv4 and IPv6

Reader Ports:  2 ports supporting Wiegand, Clock-and-Data, or RS-485 (OSDP)

Inputs:  8 general-purpose inputs, plus 2 dedicated inputs for tamper and power monitor

Outputs:  4 Relays (Form C, 5A @ 30Vdc)

Serial Ports:  2 two-wire RS-485 ports 

Backup Battery:  3 V lithium

Power Requirements:  12–24 VDC ± 10%, 500mA maximum

*