AVCOMM SEVR-M Series User manual

AVCOMM technologies Inc.
www.avcomm.us
333 West Loop N, St 460, Houston, TX 77024
1
AVCOMM Technologies Inc.
User Manual
Copyright Notice
© AVCOMM. All rights reserved.
About This Manual
This user manual is intended to guide a professional installer to install and to configure the SEVR Series . It includes
procedures to assist you in Avoiding unforeseen problems.
NOTE:
Only qualified and trained personnel should be involved with installation, inspection, and repairs of this switch.
Disclaimer
Avcomm reserves the right to make changes to this Manual or to the product hardware at any time without notice. Information
provided here is intended to be accurate and reliable. However, it might not cover all details and variations in the equipment
and does not claim to provide for every possible contingency met in the process of installation, operation, or maintenance.
Should further information be required, or should particular problem arise which are not covered sufficiently for the user’s
purposes, the matter should be referred to Avcomm. Users must be aware that updates and amendments will be made from
time to time to add new information and/or correct possible unintentional technical or typographical mistakes. It is the user’s
responsibility to determine whether there have been any such updates or amendments of the Manual. Avcomm assumes no
responsibility for its use by the third parties.
Avcomm Online Technical Services
At Avcomm, you can use the online service forms to request the support. The submitted forms are stored in server for Avcomm
team member to assign tasks and monitor the status of your service. Please feel free to write to www.avcomm.us if you
encounter any problems.

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Table of Contents
Chart 1: SEVR-Mx Series Serial Device Server Overview .............................................................................................3
a ） Product introduction................................................................................................................................3
b ） Main Features ..........................................................................................................................................3
c ） Scenarios..................................................................................................................................................4
Chart 2: SEVR-Mx Series Serial Device Server Installation Introduction ......................................................................5
a) Software installation introduction................................................................................................................5
b) LED indicator introduction............................................................................................................................5
c ） Pin definition............................................................................................................................................6
Chart 3: SEVR-Mx Series serial device server technical parameter.............................................................................7
a) Product technical parameters ......................................................................................................................7
b) Product Accessory (1 Set).............................................................................................................................8
Chart 4：SEVR-Mx series serial device server WEB operating Instruction .................................................................8
a ） System Content........................................................................................................................................8
b ） System Setting..........................................................................................................................................9
c ） Serial port setting...................................................................................................................................13
d ） Operating mode (server operating mode).............................................................................................14
e ） Status Search..........................................................................................................................................22
f ） Equipment management .......................................................................................................................24
Chapter 5: Troubleshooting Instructions for SEVR-Mx Series Serial Server ..............................................................26
a) Running serial_ethernet_connector_CH.exe cannot find the IP address of the serial port server ...........26
b) Cannot open the serial port.......................................................................................................................26
c) Cannot send and receive data. ...................................................................................................................26
d) Forgot the password set before.................................................................................................................27
e) Sending and receiving data is garbled........................................................................................................28
f ） Cannot be connected as a TCP server....................................................................................................28
Chapter 6: Accessories...............................................................................................................................................28
a）remote devices Management......................................................................................................................28
b ） COM Mapping........................................................................................................................................31
1) Create a virtual serial port. ................................................................................................................31
2) Delete virtual serial port. ...................................................................................................................34
3) Modify the virtual serial port.............................................................................................................35
4) Enable virtual serial port....................................................................................................................36
5) Disable virtual serial port...................................................................................................................36
6) Import virtual serial port list. .............................................................................................................37
7) Export virtual serial port list...............................................................................................................38
c ） Options...................................................................................................................................................39
d ） About......................................................................................................................................................40
e ） Exit..........................................................................................................................................................40

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Chart 1: SEVR-Mx Series Serial Device Server Overview
a ） Product introduction
SEVR-Mx series serial device server, also called terminal server or serial server, is a converter between asynchronous
serial port RS232/422/485 and Ethernet. It is an independent intelligent device with CPU, embedded OS, and complete TCP/IP
protocol stack. Complete the bi-directional transparent transmission of data between RS232/422/485 and Ethernet, allowing
RS232/422/485 serial devices to connect to the network immediately.
Product features: supports dynamic IP (DHCP) and static IP, supports gateways and proxy servers, and can transmit
data through the Internet. Provide bi-directional transparent transmission of data, realize the function of serial port to TCP/IP,
users do not need to make any modification to the original system. ARP, IP, TCP, HTTP, ICMP, SOCKET, UDP, SNMP, MQTT,
MODBUS and other protocols are integrated. And the equipment supports secondary development and provides an interface
for customized protocol. All programs have a setup wizard, so you can use it as long as you can use a computer.
SEVR-M1
SEVR-M2
SEVR-M4
SEVR-M8
b ） Main Features
Hardware Features
☆Provide virtualized COM driver under Windows.
☆With a serial port, it can be connected to various serial devices such as terminals, modems, bar code machines, cash
registers, ISDN, terminal adapters, serial printers, and PCs, and can realize remote control functions.
☆With Reset button, it can be forced to reset when the device halt.
☆With 10/100M adaptive Ethernet port.
☆Each serial port provides 5 signals, including RXD, TXD, RTS, CTS, GND.
☆32-bit embedded 400MHz CPU,128M RAM.
☆Both the network port and the power supply have independent indicator, which can easily indicate the working status.

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☆The device provides a secondary development interface to meet the needs of user-defined protocol transplantation.
Software Features
★Support ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, SNMP, MQTT, MODBUS and other protocols.
★Support Windows extended serial port mode
A complete extended serial port (com) drivers based on the Windows, and a simple and easy-to-use management
program on the Windows platform, which can drive up to 1024 serial ports on Windows. In this mode, each serial port
of the serial server can be mapped to the local COM port of the Windows host. This means that using these serial ports
is just like using the local COM port on the host, and it also means that all existing software or communication modules
used on the existing serial device can be used directly without modification.
★Terminal server parameter configuration
You can configure the terminal server through the web, so that you can apply the serial device server very
conveniently.
★Support software upgrade
Support software upgrades to facilitate product function extension, performance improvement and maintenance.
★Support status monitoring
On the device, not only indicators are provided to analyze the working status of the server, but also the input/output
data of the network port and each port are counted for analysis by the system administrator.
Security Features
SEVR-Mx series serial server adopts the following security mechanisms to ensure that users can use this product safely.
☆The server management password can be set, and only the system administrator can manage the terminal server, so as to
prevent unauthorized modification of the serial server to ensure the security of the serial server configuration;
☆The host name to be logged in to the port can be restricted, and host users who have not been backed up through the
restricted port will not be able to access the server to ensure the secure access of the server;
☆Since the serial device server is connected to the network during it works, in order to ensure its security during network
access;
You can restrict the hosts or network segments that are allowed to access the server. Unauthorized users who are not
backed up in the host list and network segment list will not be able to access the server through the network;
Serial device server factory IP address 192.168.1.125 sub-page code 255.255.255.0
c ） Scenarios
1. Virtual serial port mode
2. P2P Mode

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3. P2MP Mode
4. Multi-host mode (up to six hosts)
Chart 2: SEVR-Mx Series Serial Device Server Installation Introduction
a) Software installation introduction
1. IP address lookup and changing software
Refer to the attachment.
2.Virtualized serial port software
Refer to the attachment
b) LED indicator introduction

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Model
PWR（Red）
RUN（Green）
Tx（Green）
Rx（Green）
LAN
（Green, Yellow）
SEVR-M1
√
√
√
√
√
SEVR-M2
√
√
√
√
√
SEVR-M4
√
√
×
×
√
SEVR-M8
√
√
×
×
√
c ） Pin definition
1.SEVR-Mx series serial port pin definition:
RJ45
2.SEVR-MxMT series serial port terminal block pin definition:
3, SEVR-Mx Series RJ45 network port pin definition:
RJ45
RJ45
RS-232
RS-485 HALF
RS-485 FULL
RS-422
1
TxD
DATA+
TxD+
TxD+
2
RxD
DATA-
TxD-
TxD-
3
RTS
RxD+
RxD+
4
CTS
RxD-
RxD-
5
6
GND
GND
GND
GND
7
8
RJ45
EIA/TIA 568B
Definition
EIA/TIA 568B
1
Orange&
White
TX+
TX+
2
Orange
TX-
TX-
3
Green&
White
RX+
RX+
4
Blue
Data+
Data+
5
Blue &
White
Data-
Data-
6
Green
RX-
RX-
7
Brown&
White
Data+
Data+
8
Brown
Data-
Data-
3.81Termin
al Block
RS-485
RS-422
Remark
1
T/R+
TX+
2
T/R-
TX-
3
RX+
4
RX-

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Chart 3: SEVR-Mx Series serial device server technical parameter
a) Product technical parameters
Product model
SEVR-M1
SEVR-M2
SEVR-M4
SEVR-M8
Serial port number
1
2
4
8
Processor
32bit 400MHZ
32bit 400MHZ
32bit 400MHZ
32bit 400MHZ
Memory
128M
128M
128M
128M
Serial
Port
Baud Rate
300- 921600bps
300- 921600bps
300- 921600bps
300- 921600bps
Check Bit
None, Odd, even
None, Odd, even
None, Odd, even
None, Odd, even
Data Bit
5,6,7,8
5,6,7,8
5,6,7,8
5,6,7,8
Stop Bit
1,2
1,2
1,2
1,2
Flow
Control
RTS/CTS,XON/XOFF
RTS/CTS, XON/XOFF
RTS/CTS, XON/XOFF
RTS/CTS, XON/XOFF
Serial Port
Type
DB9 Male,4pin Terminal
block
RJ45
RJ45
RJ45
Serial Port
Protection
±4KV ESD Protection
±4KV ESD Protection
±4KV ESD Protection
±4KV ESD Protection
Signal
RS232：
RxD/TxD/GND/RTS/CTS, R
S422：
TXD+/RXD+/TXD-/RXD-/G
ND, RS485：Data+/Data-
RS232：
RxD/TxD/GND/RTS/CTS, RS4
22：
TXD+/RXD+/TXD-/RXD-/GND
,RS485：Data+/Data-
RS232：
RxD/TxD/GND/RTS/CTS, R
S422：
TXD+/RXD+/TXD-/RXD-/G
ND, RS485：Data+/Data-
RS232：
RxD/TxD/GND/RTS/CTS, R
S422：
TXD+/RXD+/TXD-/RXD-/G
ND, RS485：Data+/Data-
Network
Port
Speed
10/100M Adaptive
10/100M Adaptive
10/100M Adaptive
10/100M Adaptive
Type
RJ45
RJ45
RJ45
RJ45
Protection
Built- in1.5KV
Electromagnetic isolation
Built- in1.5KV
Electromagnetic isolation
Built- in1.5KV
Electromagnetic isolation
Built- in1.5KV
Electromagnetic isolation
Software
Protocol
ARP, IP,ICMP,UDP,TCP,HTTP,
DHCP, SNMP
ARP,IP,ICMP,UDP,TCP,HTTP,D
HCP, SNMP
ARP, IP,ICMP,UDP,TCP,HTTP
, DHCP, SNMP
ARP, IP, ICMP, UDP, TCP,
HTTP
, DHCP, SNMP
Virtual
COM
Windows
Windows
Windows
Windows
Environm
ent
Operating
Temp
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
Operating
Humidity
5%————95%
5%————95%
5%————95%
5%————95%
Storage
Temp
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
-40 ℃ ————85 ℃
Storage
Humidity
5%————95%
5%————95%
5%————95%
5%————95%
Power Supply
DC12~48V,350mA@12Vm
ax
DC12~48V,350mA@12Vmax
DC12~48V,350mA@12Vm
ax
DC12~48V,350mA@12Vm
ax
Appearan
ce
Housing
Metal
Metal
Metal
Metal
Size
100mm×80.8mm×30mm
100mm×80.8mm×30mm
161mm×91mm×37mm
161mm×91mm×37mm

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b) Product Accessory (1 Set)
Product model
Serial Device
Server
Power
Adapter
Software
Product Manual and
warranty bill
RJ45to Male DB9 Cable
SEVR-M1
1Set
1*DC12V/1A
1Set
1Set
X
SEVR-M2
1 Set
1*DC12V/1A
1Set
1Set
X
SEVR-M4
1 Set
1*DC12V/1A
1Set
1Set
X
SEVR-M8
1 Set
1*DC12V/1A
1Set
1Set
X
Chart 4：SEVR-Mx series serial device server WEB operating Instruction
System Content
a ） System Content
System Content---System Home (Show serial device server information)
Device number
Serial device server number
Device name
Serial device server name
Company Name
User company name
Maintenance staff, contact
Fill in the name of the device maintenance personnel and their contact information to facilitate the internal
management of the user company
Content
Function
System Home
Setting device related information
System Setting
Set device network configuration, user management, SNMP setting, mqtt setting
Serial port setting
Set serial port related parameters
Operating mode
Set the operating mode of the device
Status Search
Query various configurations and status of the device
Device
Management
Manage device operations

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b ） System Setting
1, System Setting ---IP address setting (Set serial device service networking IP parameters)
Server Name
Set the serial device server name
Enable DHCP
Check the box to get the IP address of the serial device server automatically
Ethernet IP address
Set the Ethernet IP address of the serial device server
Ethernet Subnet Mask
Set the Ethernet subnet mask of the serial device server
Default Gateway
Set the default gateway of the serial device server
Primary DNS
Set up primary DNS
Backup DNS
Set up Backup DNS
Submit, Cancel
Submit (after setting the above options must be submitted to complete the settings, and the new IP address will take effect immediately
after submission, you can use the newly set IP address to access the device),Cancel (no changes)
2,System Setting---Address Filter (Set the serial device service to filter the networking address)

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Enable address filtering
This item is checked to enable the address filtering function, a total of 4 groups of Ethernet IP segments can be filtered
Activate NO.
This item is checked even if the current group IP network segment can be filtered
Starting IP address
Set the starting IP address of the filter segment
Terminate IP address
Set the terminating IP address of the filtered network segment
Submit, Cancel
Submit (must be submitted after setting the above options to complete the settings),Cancel (no changes)
3,System Setting---User management (set the user management account information for the serial service)
Modification
Change current user password
Delete
Delete current user information
Add User
Add a new user account name
Username
Set the new username to be added
Password,
Confirm Password
Set the password of the new user added
Permission
Select the newly added user permissions, Users is the user permissions account, by default only one administrator user is
allowed for a device.
Submit, Cancel
Submit (must be submitted after setting the above options to complete the settings),Cancel (no changes)

11
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4,System Setting ---SNMP Setting (Set SNMP Trap parameters and options for serial device services)
Enable SNMP
Check the box to enable Simple Network Management Protocol
Trap receiving address
Set the Trap server address
Community Name
Set the community name of the network management protocol
System start-up
Check to enable sending system startup time signal
Login failure
Check to enable sending login failure event signal
IP address change
Check to enable sending IP address change event signal
Administrators change
password
Check to enable sending administrator password change event signal
Submit, Cancel
Submit (must be submitted after setting the above options to complete the settings),Cancel (no changes)

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5,System Setting---MQTT Settings (Set the MQTT parameters and options for the serial device server)
Enable MQTT
Check to enable MQTT and the device will create MQTT client tasks
Server Address
Setting the MQTT server address

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Server port
Set the MQTT server port number
MQTT Username
Set the username information for MQTT login
MQTT Password
Set the user password information for MQTT login
Uplink Device ID
Set the client ID of the published topic
Upside Theme
Set the posting theme
Downlink Device ID
Set the client ID of the subscription topic
Downside Theme
Set subscription topic
Submit, Cancel
Submit (must be submitted after setting the above options to complete the settings),Cancel (no changes)
c ） Serial port setting
Serial port setting (serial communication setting)
Alias
Set the serial port alias of the serial port server
Interface Type
Interface type (including RS232/485/422)
Baud rate
Serial port baud rate (the value should be the same as the baud rate of the device connected to the serial port)
Data bit
Data bits (default is 8, specific should be consistent with the device connected to the serial port)
Parity Check
Check bits (including None, Even, Odd default to None, the specific should be consistent with the serial port connected
to the device)
Stop bit
Stop bit (default is 8, specific should be consistent with the device connected to the serial port)
RTS control
Auto, XON/XOFF, CTS/RTS can be selected
Interval time
Data packing interval
Packing length
Length of data packing
Delimiter Enabling
Check the Enable Delimiter
Delimiter
Set the encoding of the delimiter for the transmitted data (0-0xff)
Delimiter handling
Choose to keep or discard
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant and
save the page, if the parameters are set to the rules to save to the device), cancel (no changes)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)

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d ） Operating mode (server operating mode)
1, TCP Server Mode (TCP Server Mode）
Operating mode
Operating mode option
Command protocol compatibility
No other compatible protocol
Data protocol conversion
Only transparent transmission is supported for now
Listening port
Set the command side of the serial port (range 0-65534)
Maximum number of connections
Number of hosts connected to the device (up to eight)
TCP preservation time
Set the retention time for TCP connection
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are
compliant and save the page, if the parameters are set to the device in accordance with the rules), cancel
(no changes)
Apply to all serial ports
Apply all serial ports (you can check this if the settings for each serial port are the same)

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2, TCP Client Mode (TCP Client Mode）
Operating mode
Operating mode option
Command protocol
No other compatible protocol
compatibility
Data protocol conversion
Only transparent transmission is supported for now
TCP preservation time
Set the retention time for TCP connection
Target IP address
Set destination IP address of the host
Target port
Set the IP address of the connected target host
Local Port
Set the local port number of the serial port service
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)
3, UDP Client Mode (UDP Client mode）
Operating mode
Operating mode option
Command protocol
compatibility
No other compatible protocols
Data protocol
conversion
Only transparent transmission is supported for now
TCP preservation time
Set the retention time for TCP connections
Target IP address
Set the IP address of the connected target host
Target port
Set the target port for the connection
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)

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4, Remote Pair Master Mode
In this mode, the device creates a TCP client service and only supports connecting a TCP server service for communication
Operating mode
Operating mode option
Command protocol
compatibility
No other compatible protocols
Data protocol conversion
Only transparent transmission is supported for now
TCP preservation time
Set the retention time for TCP connections
Target IP address
Set the IP address of the connected target host
Target port
Set the target port for the connection
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)

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5, Remote Pair Slave Mode
The device in this mode creates a TCP server service and supports only one TCP client service for connection communication.
Operating mode
Operating mode option
Command protocol
compatibility
No other compatible protocols
Data protocol conversion
Only transparent transmission is supported for now
TCP preservation time
Set the retention time for TCP connections
Local Port
Set the port number for the device to create a TCP server
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)
6、MCP&VCOM Mode (TCP/IP virtual serial port mode)
TCP/IP virtual serial port mode works in the windows system environment, through the driver to map the port on the
serial server into a virtual COM port of the local host, so that the original COM port-based operation of the upper software
without any modification as if the application of the local real COM port, the driver can support up to extend to COM1024,
making the monitoring of serial devices More flexible and convenient, multiple connection resources can also do connection
backup.
Operating mode
Operating mode option
Command protocol
compatibility
No other compatible protocols
Data protocol conversion
Only transparent transmission is supported for now
TCP retention time
Set the retention time for TCP connections
Pattern Confirmation
Since the MCP and VCOM modes correspond to different virtual serial software, you need to confirm one of them
when selecting this mode
Data Port
This is the port corresponding to the virtual serial port software driver for data communication (not configurable)

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Command Port
This is the port that corresponds to the virtual serial port software driver for monitoring the connection status (not
configurable)
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)

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7、Modbus Server Mode
In this mode, the device creates a TCP server mode, the data protocol is the standard Modbus-RTU frame format for
communication, the Ethernet network serves as the Modbus master station, and the serial port serves as the Modbus slave
station.
Operating mode
Operating mode option
Command protocol
compatible
No other compatible agreement
Data protocol conversion
Only transparent transmission is supported temporarily
TCP keep-alive time
Set the keep-alive time of the TCP connection
Local port
Set the local port number when creating a TCP server service
Maximum n u m b e r
of
connections
Set the maximum number of connections
Resting time
Set the static time. When there is no data communication within the set time, the server will actively disconnect the
client.
Submit, cancel
Submit (After setting the above options, you need to click "Submit" to check whether the parameters comply
and save the page. If the parameters are set to the device in compliance with the rules), cancel (without
modification)
Apply to all serial ports
Apply all serial ports (if the settings of each serial port are the same, you can check the next item)

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8、Modbus Client Mode
In this mode, the device creates a TCP client mode, the data protocol is the standard Modbus-RTU frame format for
communication, the Ethernet network is used as the Modbus slave, and the serial port is used as the Modbus master.
Operating mode
Operating mode option
Command protocol
compatibility
No other compatible protocols
Data protocol conversion
Only transparent transmission is supported for now
TCP preservation time
Set the retention time for TCP connections
Target IP address
Set the IP address of the server
Target port
Set the server port number
Local Port
Set the port number to which the device is bound when creating a client locally
Reset
Cancel the current line of configuration information to re-enter
Submit, Cancel
Submit (after setting the above options, you need to click "Submit" to check whether the parameters are compliant
and save the page, if the parameters are set to the device in accordance with the rules), cancel (no modification)
Apply to all serial ports
Apply all serial ports (if the settings are the same for each serial port, you can check the sub-item)