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Overview

The AM-SEK Kit includes a LIN-501C Serial-to-Ethernet Module that 
provides a standard network TCP/IP connection for Linear’s AM3Plus,  
AE1000Plus, and AE2000Plus access controllers. The module can be 
used as an alternative to a traditional telephone modem typically used 
for remote access to Plus panel controllers.
The LIN-501C module connects between the Plus panel’s RS-232 Serial 
port and the installation’s Local Area Network (LAN). Access to the panel 
can be locally through the LAN or remotely from the Wide Area Network 
(WAN). Typically the module is connected to a port on a router located on 
the installation’s LAN.

In Plus panel networks, with multiple panels interconnected via 
RS‑485 wiring, the LN‑501C module connects to Node #1 of an 
AXNET network, or Node #1 of any AccessBase2000 network.

The LIN-501C does not replace the RS-485 and modem connections in a 
multiple access panel network.  It does enable using an Ethernet network 
connection (instead of a direct serial connection or modem) between 
a Windows PC and supported Linear access panels to access and 
configure the panels using AXNET and/or AccessBase2000 applications.
For easy configuration and setup, Windows

®

 based software utilities are 

included on the installation CD. The utility software is used for setting up 
the LIN-501C module’s IP address and the computer’s virtual COM ports. 
The utility software is compatible with Windows XP

®

, Windows Vista

®

, and 

Windows 7

®.

 

To help with the module and router network configuration, 

a log sheet is provided to document the installation settings.

Network Issues

Computer network topologies range from simple to complex. These 
instructions outline installation for a basic local area network. Large and 
complex networks may require setup that is beyond the scope of these 
instructions. If setup issues arise while configuring the LIN-501C module, 
seek assistance from the IT professional responsible for maintaining the 
network.

Programming PC Overview

At the installation site, a programming PC needs to be connected to the 
Local Area Network. This PC can be a permanent one in the installation, 
or can be a temporary PC brought in by the installer.
Administrator access will be required to setup the virtual COM ports on 
the PC. The virtual COM ports are assigned the IP address and port 
number of each LIN-501C module.
If AccessBase2000 is used to manage the access network, it needs 
to be installed on the management PC. 

To avoid overwriting the 

installation’s database, don’t run AccessBase2000 remotely on a 
separate setup PC.

If AXNET is going to be used to manage the access network, the PC will 
use a Windows direct connect network connection to communicate with 
the access network. Refer to Page 5 of AXNET manual P/N 226505 for 
details on setting up the Windows direct connect network connection.

Module Installation

1. 

Mount the LIN-501C module in a secure and weather protected location.

2. 

Connect the modular jack end of the A2C-DB9 cable to the RS-232 
Port of the Linear “Plus” panel.

3. 

Connect the DB9 connector end of the A2C-DB9 cable to the COM 
port on the LIN-501C module.

4. 

Connect a CAT-5 network cable between the LAN connector on the 
LIN-501C module and an open port on the Local Area Network’s 
router (300 foot cable length maximum).

5. 

Route the wire from the power supply and connect the power supply 
cable RED (+) and BLACK (-) terminals on the plug-in terminal block. 
Plug the terminal block into the module.

6. 

Repeat Steps 1-5 for each additional LIN-501C module installed for 
different access networks in the installation.

7. 

When power is applied, a module’s RUN indicator should light and 
the LAN indicator should flash.

PRINTER’S INSTRUCTIONS:

ETHERNET MODULE QUICK START GUIDE - LINEAR P/N: 231625 A - INK: BLACK - PAPER STOCK: 20# MEAD BOND - SIZE: FLAT 17.000” x 11.000” FINISH 8.500” x 11.000” - FOLDING: 1-FOLD VERTICAL- PAGE 1 OF 2

AM-SEK / LIN-501C Quick Start Guide

AM-SEK / LIN-501C Quick Start Guide

Copyright © 2011 Linear LLC 

231625 A

USA & Canada (800) 421-1587 & (800) 392-0123

(760) 438-7000 - Toll Free FAX (800) 468-1340

www.linearcorp.com

ANY LINEAR "Plus"

TELEPHONE ENTRY

OR ACCESS CONTROL

SYSTEM

LIN-501C
MODULE

WIDE AREA NETWORK

INTERFACE

DEVICE

LOCAL AREA NETWORK

10/100 BASE-T

ETHERNET

A2C/DB9

SERIAL

CABLE

INTERNET

SERVICE

PROVIDER

RS-232

CAT-5

TO UP TO 7 MORE

PLUS PANELS ON AN

AB2000 NETWORK

RS-485

TO UP TO 3 MORE

PLUS PANELS ON AN

AXNET NETWORK

LIN-501C

ACCESS CONTROL

INSTALLATION SITE

LOCAL

COMPUTER

4-PORT ROUTER

TYPICAL INSTALLATION WITH THE LIN-501C MODULE FUNCTIONING AS THE

INTERFACE BETWEEN THE PLUS PANEL AND THE INSTALLATION'S LOCAL AREA NETWORK

PORT 

1

PORT 

2

PORT 

3

PORT 

4

WA

N

ISP

THE

INTERNET

WA

N

POWER

SUPPLY

- 1 -

- 4 -

Communicating with the Access Network

Local Connecting with AccessBase2000

After opening the AccessBase2000 application, go to the network 
settings screen and set each active network to connect using the virtual 
COM port number (COM2 - COM8) that was setup to communicate with 
its LIN-501C module.

Local Connecting with AXNET

Create a Windows direct connect network when setting up for AXNET 
communications. Be sure to select the virtual COM port number assigned 
to the LIN-501C module for the “Communications Cable Between Two 
Computers” setting. Be sure to configure the port speed to 38400 bps.

Remote Connecting with AccessBase2000

After opening the AccessBase2000 application, go to the network 
settings screen and set each active network to connect using the virtual 
COM port number (COM2 - COM8) that was setup to communicate with 
the router’s external IP address and module’s public port number.

 

NOTE: In existing installations, it is not recommended to 
connect with AccessBase2000 remotely on a separate setup 
PC. The installation’s database in the local PC could get 
overwritten, causing LOSS OF ALL CARDHOLDER DATA and 
other programming! Always backup installation data!

Remote Connecting with AXNET

Create a Windows direct connect network when setting up for AXNET 
communications. Be sure to select the virtual COM port number that was 
setup to communicate with the router’s external IP address and module’s 
public port number. Be sure to configure the port speed to 38400 bps. 
After the network connection is made and connected, use an Internet 
Web browser to connect to the AXNET panel.

LIN-501C General Specifications

 

Note: LIN-501C Module is only available in the AM-SEK Kit and 
is not sold separately.

Power: 

12 VDC from plug-in power supply (included), also supports a 

5 volt DC redundant input from an external power supply

Network Connection: 

100BASE-T RJ-45 connector

Network Speed: 

Fast Ethernet 10/100 Mbps

Serial Connection: 

Male DB9 for connection with A2C/DB9 serial 

cable (included)

Serial Port Speed: 

38.4 Kbps

Mounting: 

DIN-rail or screw mounting

Dimensions (LIN‑501C Module): 

3-1/2” W x 3-3/4” H x 1” D

Weight: 

6-1/2 ozs. 

Using Ping to Test IP Addresses

1. 

From the Windows 

START

 menu, select 

RUN

.

2. 

Enter 

COMMAND

 (or 

CMD

) into the 

OPEN:

 field and press OK. The  

DOS command prompt window will open.

3. 

To test an IP address enter 

PING

 and the IP address.

4. 

If the Ping command displays “Request timed out.” the IP address 
is not currently used. The address 

can be assigned

 to a LIN-501C 

module.

5. 

If the Ping command displays replies from the IP address, the 
address is already being used by a device and 

cannot be assigned

 

to a LIN-501C module.

Software CD

& Quick Start 

Guide

Power Adapter

Serial Cable

LIN‑501C

Serial‑to‑Ethernet 

Module

AM-SEK Kit Includes:

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