ERM-871 - Access Control System EverFocus - Free user manual and instructions

Product Type	125 kHz Proximity Reader (Mullion form factor)
Brand	EverFocus
Model	ERM-871
Frequency	125 kHz
Read Range	5-10 cm (2-3.9 in)
Read Time	200 ms
Output Formats	Wiegand 26 or Special RS-232 (9600 bps)
Power Supply	6.5-18 V DC, 150 mA max
LED Indicators	Red (Power), Green (Card Present), Yellow (Outer Source)
Audio Buzzer	Built-in, 2 kHz
Weather Resistance	Weather resistant, suitable for indoor/outdoor
Operating Temperature	-10°C to 60°C (14°F to 140°F)
Dimensions (H x W x D)	5.52 x 1.58 x 0.95 in (14.0 x 4.0 x 2.4 cm)
Wire Pigtail Length	18 in (45.7 cm)
Maximum Cable Distance	Up to 500 ft (152 m) with 22 AWG, 5-conductor cable
Transient Protection	Up to 500W
Tamper Switch	Yes, Normally Closed
Data Bit Format	64-bit card data
Mounting	Surface mount with included screws and L-type spanner
Compatibility	EverAccess controllers and most Wiegand 26 controllers

Frequently Asked Questions - ERM-871 EverFocus

What is the ERM-871 proximity reader?

The ERM-871 is a 125 kHz proximity reader manufactured by EverFocus. It is designed for access control systems and supports Wiegand 26 or Special RS-232 output formats.

How do I connect the ERM-871 to a controller?

Connect the wires according to the desired output format. For Wiegand 26, use Red (power), Black (GND), Green (Data 0), and Brown (Data 1). For Special RS-232, use Blue (TX) and Gray (RX) instead of Green/Brown. Refer to the manual for detailed wiring.

What is the read range of the ERM-871?

The typical read range is 5-10 cm (2-3.9 inches) depending on the card and installation environment.

What power supply is needed for the ERM-871?

The reader requires a DC power supply of 6.5-18 V, with a maximum current draw of 150 mA.

What do the LED colors indicate?

Red LED indicates power is on. Green LED indicates a card is present (card read). Yellow LED is controlled by an external source for additional status indication.

Is the ERM-871 weather resistant?

Yes, it is weather resistant and suitable for both indoor and outdoor use.

Can the ERM-871 be mounted on a metal surface?

It is recommended to keep the reader at least 2.4 inches (6 cm) away from large metal surfaces. For side-by-side installation, maintain at least 6 inches (15 cm) gap; for back-to-back, at least 8 inches (20 cm).

What is the maximum cable distance between the reader and controller?

Using 22 AWG, 5-conductor cable, the maximum distance is up to 500 feet (152 meters).

Does the ERM-871 have a tamper switch?

Yes, it includes a tamper switch (normally closed) for security purposes.

How do I reset the ERM-871?

The ERM-871 does not have a reset button. To reset, cycle the power: disconnect the power supply (Red wire) and reconnect after a few seconds.

USER MANUAL ERM-871 EverFocus

Three black electronic devices with visible ports and buttons, shown from different angles (no text or symbols on the devices themselves)

EverAccess Proximity Readers

ERR-871

ERK-871

ERM-871

EVERFOCUS ELECTRONICS CORPORATION

ERR-871

ERK-871

ERM-871

Instruction Guide

© 2004 Everfocus Electronics Corp

1801 Highland Ave Duarte CA 91010

Phone [phone] • Fax [phone]

All rights reserved. No part of the contents of this manual may be reproduced or transmitted in any form or by any means without written permission of the Everfocus Electronics Corporation.

Table of Contents

CHAPTER 1

Product Overview 1

Features 1

Parts List 2

Specifications 2

CHAPTER 2

Installation 4

Wiring Connections 4

Connection to Controller 5

Basic Mounting Instructions 5

CHAPTER 3

Data Format 8

Specialized RS-232 8

Wiegand 26 8

Product Overview

EverAccess Proximity Readers, including the ERR-871, ERK-871 and ERM-871, incorporate state-of-the-art technology, reliable performance, easy-to-use features, and elegant appearance. The Readers generate a 125 kHz RF field that detects data from proximity cards. The data output format is Wiegand 26 or RS-232, which allows easy integration with most controllers, including EverAccess controllers. The Readers have 3 LED indicators which emit red, green, and yellow colors that indicate different values. The pigtail wiring on the back of the Readers is 18" long, enabling easy installation. EverAccess Proximity Readers are an ideal choice for any Access Control System.

Features

➢ 125kHz proximity technology
Wiegand 26 or Special RS232 data output format
3 LED indicators
➢ Weather resistant; suitable for indoor or outdoor use
➢ 18" Wire pigtail for easy installation
Built-in audio buzzer
200ms read time
Elegant Design
➢ Transient voltage shock protection up to 500W

Parts List

Please be careful when you unpack the box due to the electronics devices inside. Check and make sure that you have all the items below inside the original box:

➢ 1 125kHz Proximity Reader
1 User manual
➢ 2 ST4*20 self-tapping panhead screws
2 M4*20 screws
➢ 1 L-type Spanner

If an item appears to have been damaged in shipment, replace it properly in its carton and notify the shipper. If any items are missing, notify your Everfocus Electronics Corp. Sales Representative or Customer Service. The shipping carton is the safest container in which the unit may be transported. Save it for possible future use.

In addition, EverAccess recommends the following parts, to be provided by the installer:

9 Wire Splice
➢ 1 DC Power Supply, 6.5-18VDC, 150mA
▶ Up to 500 ft. Cable, 22AWG, 5 Conductor

Specifications

Regular reader Keypad reader Mullion reader
Frequency	125
Data format 64 bit
Read range 5-12cm (2-4.7") 5-12cm (2-4.7") 5-10cm (2-3.9")
Read time 200 ms
Output format Wiegand 26 and Special RS232 format for EverAccess controller
Audio Built-in Buzzer, 2 kHz
Indicator	3 LEDs:Red: PowerGreen: Card PresentYellow: Outer Source
Power supply 6.5V-18V DC, Max:150mA
Operation temperature	14°F-0°F (-10°-60°C)
Dimension	4.85"x3.03"x0.76"(12.3x7.7x1.9cm)	4.85"x3.03"x0.85"(12.3x7.7x2.1cm)	5.52"x1.58"x0.95"(14.0x4.0x2.4cm)
Transition distance 500 ft.
Tamper switch Yes, Normally Closed
Keypad	N/Λ	4*4	N/Λ

KHz

Regular Reader

Keypad Reader

Mullion Reader

Installation

EverAccess Proximity Readers should be installed by qualified installation professionals. The installation procedures described below are recommended guidelines, but all local, state, and national electrical codes take precedence.

Please refer to the following diagram for the wiring connections and mounting instruction.

Wiring Connections

Table 2.1. Reader wires' definition

Color Functionality
Red Power supply 6.5 ~ 18 V DC
Black	GND
Green Data 0 (Wiegand)
Brown Data 1 (Wiegand)
Blue	Specialized RS-232 TX
Gray	Specialized RS-232 RX
Yellow For control purpose, as the power supply is 5~12Vthe yellow led indication lights up
Orange	Anti-tamper Switch
Violet	Anti-tamper Switch

Connection to Controller

Two options are available for data output: Wiegand 26 and a special RS232 format. Both formats are compatible with EverAccess controllers, and Wiegand 26 is compatible with many brand name controllers. Table 2.2 describes these two data formats and their corresponding connection method in detail.

Table 2.2 connecting controller and readers

Connection mode Controller end Reader end wires
Specialized RS-232	DC IN Red
	GND	Black
	Specialized RS-232 TX Blue
	Specialized RS-232 RX Gray
Wiegand 26	DC IN Red
	GND	Black
	Data 0 Green
	Data 1 Brown

Basic Mounting Instructions

Please refer to Fig 2.1 to assist you with this portion of the installation. Fig. 2.1 (a), (b) and (c) show the mounting steps for the regular reader, keypad reader and mullion reader, respectively. The general rule is connecting the wires in the back of the reader first. Take off the cover box from the reader, and fix the baseboard on the wall with the screws (provided in the package) firmly (step 1). Then put the cover box of the reader back on the baseboard (step 2, 3). Finally mount the screw at the bottom of the reader (step 4. Both the screw and the spanner are provided in the package.)

Technical line drawing of a mechanical assembly with mounting holes and internal components (no text or symbols)

Technical line drawing of a mechanical component with numbered annotations (no text or symbols)

Isometric line drawing of a wall-mounted cabinet with a screw base (no text or symbols)

(a) Regular reader

Technical line drawing of a mechanical assembly with no visible text or symbols

Line drawing of a mobile phone with keypad and control panel, no text or symbols present

(b) Keypad reader

Technical line drawing of a mechanical assembly with no visible text or symbols

Isometric line drawing of a refrigerator with labeled parts (no text or symbols)

(c) Mullion reader
Figure 2.1 Reader mouting

Note: Please keep reader from large metal for at least 2.4". Two reader scan NOT be installed side by side, or back to back with short distance. In case it is required to install the reader side by side, a minimum distance of 6" is recommended between readers. For the back-to-back case, the recommendation distance is 8" at least.

Pure architectural line drawing of a symmetrical structure with no text, numbers, or symbols

Data Format

This chapter will briefly introduce the format of reader's output.

Two formats can be used to transfer data from the readers to controllers: specialized RS-232 and wiegand 26. Specialized RS-232, specially designed for EverAccess system, is recommended for use to achieve the best performance.

Specialized RS-232

The data speed of specialized RS-232 is 9600 bps. All data including card information and keypad input has been combined together into a data packet. The data packet is transferred as ASCII character codes.

The length of one data packet is 22 bytes totally, which contains 1-byte packet header, 1-byte synchronization information, 16-byte card information, 1-byte keypad input, 1-byte tail (0x30) and 2-byte checksum. The last 2 bytes are the arithmetic checksum of the previous 20 bytes data.

Each new data packet will be transferred repeatedly for 50 times. After that, a single idle packet will be transmitted until some new data enters the system. The format of the idle packet is similar to the normal data packet except that card information bytes and keypad input bytes will be changed into 0x30, the same as the 1 byte packet tail.

1 2 3~18 19 20 21~22
Head	SYNC Card information		Keypad input	Tail	Check- sum

Figure 3.1 Specialized RS-232 packet format (byte)

Wiegand 26

As the name implies, each wiegand 26 packet contains 26 bit inside: 2 parity bits and 24-bit data. Please refer to Fig 3.2 for details. The 1^st bit is the even parity of sequential 12 bits and the last bit (the 26^th bit) is the odd parity of the 12-bit data before it

1 2~25 26
Even parity	Data	Odd parity

Figure 3.2 wiegand 26 format (bit)

Unlike specialized RS-232 format, the keypad input is processed separately from the card information. Each time the keypad is pressed, the data bus of Data 0 (green wire) and Data 1 (brown wire) will send out a corresponding digit combination, as Table 3.1 shows:

Table 3.1 Data 0 and Data1 combination for keypad input

Keypad input Data 0 Data 1
1	0001	1110
2	0010	1101
3	0011	1100
4	0100	1011
5	0101	1010
6	0110	1001
7	0111	1000
8	1000	0111
9	1001	0110
×	1010	0101
0	0000	1111
#	1011	0100

Notes

EverFocus Electronics Corp.

Head Office

12F, No.79 Sec.1 Shin-Tai Wu Road, Hsi-Chi, Taipei, Taiwan

Tel :+ 886-2-26982334

Fax :+ 886-2-26982380

European Office

D-46446 Emmerich, German

Tel : [phone]

Fax : [phone]

USA Office

1801 Highland Ave.Duarte,CA

91010 ,U.S.A

Tel :+ 1-626-844-8888

Fax :+ 1-626-844-8838

Beijing office:

Room 609, Technology Trade Building.

Shangdi Information Industry Base,

Haidian District, Beijing China

Tel :+ 86-10-62971096

Fax :+ 86-10-62971423

Japan Office

1809 WBG Marive East 18F,

2-6 Nakase, Mihama-ku,

Chiba city 261-7118, Japan