Network Four - Door Access Control Controller

• Customization: Available
• Card Reader Quantity: 4
• Control Gates: Four Gates
• Model NO.: LM-388N-F
• Technology: 32-Bit Technology
• Way of Control: Computer Control
• Communication Mode: TCP/IP
• Type: One-way Controller
• User Right Storage Capacity: 1000000
• Blacklist Information Storage Capacity: 500000
• Card Reader Interface: 4×wiegand 2/6/32/34, 1×RS - 485
• Communication Interface: 1×TCP/IP, 1×RS - 485, 1×RS - 232
• Input Interface: 4×buttons, 4×doors, 1×anti - Tam
• Output Interface: 4×relays, 4×bell Outputs
• Expansion Interface: 8×signal Inputs, 8×alarm Outputs (Expa
• Specification: 400mm× 320mm× 94mm
• Trademark: Limai
• Origin: Shenzhen China
• Package Size: 40.00cm * 32.00cm * 9.25cm
• Package Gross Weight: 0.500kg

Product Description

Four-door Access Controller

Network Access Control Controller,Equipped with an industrial-grade microprocessor, it fully meets the requirements for reliability, stability, and durability of high-level security products.

Product Overview

The network access control controller is mainly used for managing the entry and exit of controlled access points and recording various access control events. The controller is equipped with an industrial - grade microprocessor, wide - voltage high - reliability switches, TVS transient protection input ports, and a professional power management unit, which can withstand over - current, over - voltage, and power - off risks, fully meeting the requirements for high - level security products in terms of reliability, stability, and durability.

The controller supports functions such as password authentication, card - swiping plus password, multi - door interlock, multi - door anti - trailing, arbitrary holiday settings, temporary access rights, power self - check, system self - check, card - swiping induction, and access control area networking.

Network Topology Diagram

Technical Parameters

Rated Voltage	DC12V
Rated Current	70mA/12V (excluding card reader)
Status Indicator	5×LED
CPU Processor	32 - bit Cortex - A5, 500MHz main frequency
Flash Storage Capacity	2Gb
RAM Storage Capacity	512Mb
User Privilege Storage Capacity	100000
Access Control Information Storage Capacity	500000
Card Reader Interface	4×Wiegand 4/26/32/34, 1×RS - 485
Communication Interface	1×TCP/IP, 1×RS - 485, 1×RS - 232
Input Interface	4×button, 4×door magnet, 1×tamper - proof, 1×fire protection, 2×spare
Output Interface	4×relay, 4×alarm
Expansion Interface	8 signal inputs, 8 alarm outputs (requires optional expansion board)
Backup Battery	13.8VDC/7Ah (external required, backup power for 2 - 3 hours)
Antistatic Interference	15KV
Ambient Temperature	- 10℃ - + 55℃
Relative Humidity	10% - 90% (non - condensing)
Controller Dimensions	206.5mm×137.5mm×15mm
Controller Box Dimensions	400mm×320mm×92.5mm

Installation and Debugging

1. Interface Introduction

(1) DC12V Power Input Interface

(2) Power Status Signal Input Interface

(3) Door 4 Unlock Output, Button, and Door Sensor Input Interface

(4) Door 3 Unlock Output, Button, and Door Sensor Input Interface

(5) Door 2 Unlock Output, Button, and Door Sensor Input Interface

(6) Door 1 Unlock Output, Button, and Door Sensor Input Interface

(7) Door 3 & 4 Alarm Signal Output Interface

(8) Door 1 & 2 Alarm Signal Output Interface

(9) Tamper-Proof, Fire Protection, and Spare Signal Input Interface

(10) Door 1 Card Reader Wiegand Input Interface

(11) Door 2 Card Reader Wiegand Input Interface

(12) Door 3 Card Reader Wiegand Input Interface

(13) Door 4 Card Reader Wiegand Input Interface

(14) TCP/IP Network Communication Interface

(15) RS-232 Program Debugging Interface

(16) RS-485 Card Reader Interface

(17) RS-485 Expansion Interface

(18) DC12V Power Output Interface

(19) System Operation Indicator Light

(20) IP Address Reset Button

(21) System Reset/Restart Button

(22) DIP Switch Settings

2. Wiring Instructions

(1) DC - 12V Power Input Interface
Connect the DC 12V output from the power management board (with a maximum current not exceeding 2A) as the main power supply for the controller.

(2) Power Status Signal Input Interface
Connect the detection signal output from the power management board to obtain the voltage information of the main power supply and the backup battery, and report it to the monitoring center.

(3) Door 4 Unlock Output, Button, and Door Magnet Input Interface
As shown in Figure 1, NC4 - COM4 - NO4 are the unlock output interfaces for Door 4. NC4 - COM4 can be connected to a power - off unlocking lock, and NO4 - COM4 can be connected to a power - on unlocking lock. DS4 - GND is the door magnet input interface for Door 4. When DS4 is disconnected from GND, a door magnet alarm is triggered. EB4 - GND is the unlock button input interface for Door 4. Short - circuiting EB4 and GND controls the door opening. The input point has a 10K pull - up resistor and is input in a 5V TTL level mode. For stable system operation, it is recommended to input dry - contact signals.

(4) Door 3 Unlock Output, Button, and Door Magnet Input Interface
Refer to (3) for the unlock output, button, and door magnet input interfaces of Door 3.

(5) Door 2 Unlock Output, Button, and Door Magnet Input Interface
Refer to (3) for the unlock output, button, and door magnet input interfaces of Door 2.

(6) Door 1 Unlock Output, Button, and Door Magnet Input Interface
Refer to (3) for the unlock output, button, and door magnet input interfaces of Door 1.

(7) Alarm Signal Output Interface for Door 1 and Door 2
Refer to (3) for the alarm signal output interfaces of Door 1 and Door 2.

As shown in Figure 2, NC4 - COM4 - NO4 are the alarm signal output interfaces for Door 4. NC4 - COM4 is a normally - closed output, which opens during an alarm, while NO4 - COM4 is a normally - open output, which closes during an alarm. NC3 - COM3 - NO3 are the alarm signal output interfaces for Door 3, with the same function.

(8) Alarm Signal Output Interface for Door 1 and Door 2
Refer to (7) for the alarm signal output interfaces of Door 3 and Door 4.

(9) Tamper - proof, Fire - protection and Spare Signal Input Interface
Anti1/2 - GND are the tamper - proof alarm input interfaces. IN3 - GND is the fire - alarm input interface. IN2 - GND and IN1 - GND are the spare input interfaces.

(10) Door 1 Card Reader Wiegand Input Interface
An eight - core Wiegand interface with a maximum output power of 12V/200mA. If the working current of the card reader exceeds 200mA, an external power supply is required.

(11) Door 2 Card Reader Wiegand Input Interface
Refer to (10) for the Door 2 card reader Wiegand input interface.

(12) Door 3 Card Reader Wiegand Input Interface
Refer to (10) for the Door 1 card reader Wiegand input interface.

(13) Door 4 Card Reader Wiegand Input Interface
Refer to (10) for the Door 1 card reader Wiegand input interface.

(14) TCP/IP Network Communication Interface
It is the main communication interface between the controller and the upper - level software. It can be used for firmware upgrade, authority download, parameter download, online monitoring, remote control, etc.

(15) RS - 232 Programming Interface
It is the controller's program online debugging interface.

(16) RS - 485 Card Reader Interface
It is a differential communication interface composed of wires A and B, mainly used to connect card readers with RS - 485 communication mode.

(17) RS - 485 Expansion Interface
It is a differential communication interface composed of wires A and B, mainly used to connect input/output port expansion boards.

(18) DC12V Power Output Interface
It outputs a direct - current 12V, which is only used as the power supply for expansion.

(19) System Operation Indicator
The light flickers under the control of the system heartbeat signal, visually showing the operating status of the control panel.

(20) IP Address Reset Button
Press this button for 3 seconds, and the operation indicator will flash slowly 3 times. The IP address of the control panel will be restored to the factory default of 192.168.10.100.

(21) System Reset and Restart Button
Press this button, and the control panel will restart its operating system.

(22) DIP Switch Settings
An 8-bit DIP switch (S1–S8) with two positions: ON and OFF. Each combination of switch positions configures a specific operating mode for the controller.

S1	S2		S3	/	Reserved DIP Settings
off	off	No 485 Card Reader	S4	/	Reserved DIP Settings
on	off	Polling 485 Card Reader	S5	on	Enable 485 Card Reader at Address 5
off	on	Fingerprint 485 Card Reader	S6	on	Enable 485 Card Reader at Address 6
on	on	Active - upload 485 Card Reader	S7	on	Enable 485 Card Reader at Address 7
			S8	on	Enable 485 Card Reader at Address 8

3. Installation Specifications and Precautions

When using the equipment, the following installation specifications and precautions should be followed:

1,The power cable and signal cable should be in separate conduits. When the two conduits are arranged in parallel over a long distance, the distance between them should be more than 30 cm (when using metal conduits for wiring).
2,The 220V AC power is uniformly supplied from the management center's UPS to each access control point. For small - scale systems, 220V AC power can also be taken nearby, but it must comply with relevant regulations.
3,When wiring, be sure to mark the wires, and the wire joints must be placed in the junction box to avoid trouble during future installation and debugging.
4,A straight - through cable of Category 5e or Category 6 (model: UTP CAT5e or CAT6) should be used between the access control controller and the switch. During construction, an information point must be reserved near the access control controller for network connection.
5,Installation requirements: The controller is generally installed in the weak current well or on the ceiling 30 cm above the door. If the access control controller is installed in a cabinet (it is recommended to fix the circuit board with studs, and the height of the studs should be ≥1 cm), it should be installed in a safe and reasonable position near the access control point. At the same time, considering the wiring specifications for the access control cabinet, before wiring, install gaskets or bushings at all inlet ports in accordance with the specification requirements (to prevent the cabinet from damaging the wires). The installation diagram is as follows:
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6,Installation process and finished product protection: The access control controller is a core device of the system. Before installing the equipment, fully consider whether the site has the installation conditions, reasonably arrange the construction process, minimize cross - contamination. After the equipment installation is completed, do a good job in finished product protection measures to minimize and avoid contamination and damage to the finished product during the construction process. Before power - on, ensure that all wiring is correct, otherwise it may cause equipment damage.