Prestel CSP-4 Network Serial Port Expander
Thank you for purchasing this product
For optimum performance and safety, please read these instructions carefully before connecting, operating or adjusting this product. Please keep this manual for future reference.
Surge protection device recommended
This product contains sensitive electrical components that may be damaged by electr-ical spikes, surges, electric shock, lighting strikes, etc. Use of surge protection systems is highly recommended in order to protect and extend the life of your equipment.
Introduction
This Network Serial Port Expander, with 4 extended input and output serial ports, can communicate with the programmable central control system or PC to control multiple devices, and perform protocol conversion between various devices with different communication modes. Built-in various input communication interfaces, the expander can communicate with the programmable central control host or PC through RS-232, RS-422, RS-485 and Network communication interface. The front panel of the expander is designed with LED indicators for power supply, main & extended serial ports sending/receiving data, which can conveniently and quickly indicate the progress of data communication and equipment power failure.
Features
- Main serial ports support RS-232, RS-422 full duplex, and RS-485 half duplex; extended serial port 1 and extended serial port 2 support RS-232, RS-232+ hardware flow control, RS-422 full duplex, and RS-485 half duplex; extended serial port 3 and extended serial port 4 support RS-232 and RS-232+ hardware flow control
- Extended serial ports support any baud rate (2400, 4800, 9600, 14400, 19200, 38400, 5600, 57600, 115200) to communicate with devices
- Extended serial ports support data bits (7, 8 bits), parity bits (odd, even, none), stop bits (1, 2 bits) settings
- Large buffering space for data transmitting and receiving is reserved for each serial port; data queue is supported
- Each frame of data can support up to 512 bytes
- Support data pass-through from an extended serial port to TCP/IP or UDP network
- Can be used as a protocol converter for serial communication and network communication; 2 network communication modes are provided:
a. TCP acts as a server, and the extender listens for TCP connection requests on the specified TCP port;
b. UDP acts as a server, and the extender listens for UDP connection requests on the specified UDP port. - Provide one 100M Ethernet communication interface, one RS-232 and one RS – 485 interface, which can be connected to computer or central control system, compatible with all third-party central control systems such as AMX, CRESTRON, RTI, etc.
- Main communication serial ports support changing the communication baud rate to adapt to any baud rate (2400, 4800, 9600, 14400, 19200, 38400, 5600, 57600, 115200)
- Support 4 low-voltage relay ports, normally open contacts; each group is independent and isolated, maximum to 1A 24V DC/AC loading
- Built-in Web server, which can configure device parameters directly through the browser of various computers, tablets and mobile devices
- Support name or remark device name
Package Contents
① 1 ⅹ Network Serial Port Expander
② 2 ⅹ 5-pin Phoenix Connector (3.81mm, male)
③ 2 ⅹ 7-pin Phoenix Connector (3.81mm, male)
④ 1 ⅹ 8-pin Phoenix Connector (3.81mm, male)
⑤ 2 ⅹ 9-pin Phoenix Connector (3.81mm, male)
⑥ 4 ⅹ Machine Screw
⑦ 2 ⅹ Mounting Ear
⑧ 1 ⅹ 24V/1A Power Adaptor with 2-pin 3.5mm Phoenix Connector
⑨ 1 ⅹ User Manual
Specifications
| Technical | |
| RS-232 | Support full duplex communication mode, configurable hardware flow control |
| RS-485 | Support half duplex communication mode |
| RS-422 | Support full duplex communication mode |
| Baud Rate | Support 2400, 4800, 9600, 14400, 19200, 38400, 5600, 57600 and 115200 |
| LAN | 10/100 M Ethernet interface |
| RELAYS | Up to 1A 24VDC/AC loading |
| Connection | |
| INPUTS | 1x LAN [RJ45, 8-pin female] 1×COM [7-pin Phoenix jack] 1×DC IN [2-pin Phoenix jack] |
| OUTPUTS | 1×COM [7-pin Phoenix jack] 2×COM [9-pin Phoenix jack] 2×COM [5-pin Phoenix jack] 1×RELAY [8-pin Phoenix jack] |
| Mechanical | |
| Housing | Mental Enclosure |
| Color | Black |
| Dimension | 147mm(W)×130mm(D)×42mm(H) |
| Weight | 673g |
| Power Supply | Input: AC100 – 240V 50/60Hz Output: DC 24V/1A |
| Power Consumption | ＜2W |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Relative Humidity | 20~90% RH (non-condensing) |
Operation Controls and Functions
| No. | Name | Function Description |
| 1 | LAN LED | Network connection indicator. The green light flashes when the network communication is in good state. |
| 2 | POWER LED | The green light is on when the device is powered on. |
| 3 | RELAYS LED | Relay closing indicator. The green light is always on after the Relay is set to be closing. |
| 4 | RS-232/422/ 485 LED | Uplink and downlink extended serial port indicators, flashing when sending data (red light) and receiving data (yellow light). |
| 5 | DC 24V | DC 24V/1A power input port. |
| 6 | RESET button | Press and hold the reset button for 5 seconds to reset the factory settings. |
| 7 | LAN | 10M/100M Network communication interface. |
| 8 | MAIN COM | Main communication serial port. Connect to the central control system or PC. |
| 9 | NEXT COM | Main control cascading output serial port. |
| 10 | RELAY OUTPUT | 4 low-voltage relay ports, normally open contacts, each group is independent and isolated, maximum to 1A 24V DC/ AC loading. |
| 11 | RS-232/ 422 /485 | Extended serial port, COM1 and COM2 support RS-232/422/ 485 protocol; COM3 and COM4 support RS-232 protocol, which enables the extender to have two-way communication with devices. |
Web GUI User Guide
The product supports Web GUI control. You can configure device parameters directly through the browser of various computers, tablets and mobile devices.
The operation method is shown as below:
Step 1, Connect the LAN port of the device to PC, and set the PC’s IP address
to be in the same network segment with the expander. For instance, set the IP address to be 192.168.1.64 and Subnet mask to be 255.255.255.0, as shown in the figure below.
Step 2, Open the browser (Google Chrome is recommended), and input the expander’s default IP address 192.168.1.100 to enter the Web GUI page.
The Web GUI pages are shown as below:
- Overview Page
The Overview page provides basic information about the product name, firmware version, serial ID, serial Baud and the network settings.
- Serial /Relay Page
On this page you can configure serial ports and turn on/off relays. After setting, please click “Confirm”.
- System Page
On this page you can configure network setting, main serial port setting, product setting and restore factory settings. After setting, please click “Confirm”.
ASCII Commands
The product also supports ASCII command control. Connect the product to a PC and open a Serial Command tool on PC to send ASCII commands to control the product.
Here is the ASCII command list about Single Machine Instruction.
| ASCII Commands | ||||
| Serial port protocol: baud rate:115200(default) Data bits: 8 Stop bits:1 Parity: none Flow control: none | ||||
| TCP/IP port: 8880 udp port:8881 | ||||
| x,y,z, XXX are parameters Error Code describe: E00 -> unknown command E01 -> parameter out of range E04 -> This feature is not supported | ||||
| Serial port expander id range:z = 1~999 Note: When cascading, the id numbers of all machines cannot be set to the same. | ||||
| VERSION V1.00.09 | ||||
| Command Code | Description | Example | Feedback | Default Setting |
| System Settings | ||||
| cspower x! | x ={0-1}, 1 = power on, 0 = power off x = on/off, on = power on, off =power off | cs power 1! / cs power on! | power state: power on | power on |
| cr power! | get current power state | cr power! | power state: power on/off | |
| csreboot! | reboot the device | csreboot! | reboot…com x config info: baud rate:xxx data len:8bit/7bit stop bit:1bit/2bit parity bit: none/even/odd output type:rs232/ rs232+flow/rs485/ rs422 | |
| csreset! | Reset to factory defaults | cs reset! | Reset to factory defaults | |
| crfw version! | Get Firmware version | cr fw version! | mcu boot:v1.00.01 mcu app :v1.00.13 | |
| crstatus! | Get device current status | cr status! | get the product all status: power, id,com status, ip config,relay status; | |
| csid [x]! | Set the ID of the serial port expander, x=1-999 | cs id 1! | set the serial id is 1 | serial id is 1 |
| Command Code | Description | Example | Feedback | Default Setting |
| cr id! | Query the ID of the serial port expander | cr id! | serial id is xxx | |
| cs product name xxx! | Set the product name Maximum support for 8 characters | cs product | set product | product name |
| cr product name! | Query product name | cr product name! | product name is | |
| Serial Port Settings | ||||
| cs com [x] baudrate [y]! | Serial port baud rate settings x = {1-5}, y = {1-9}, 1->main com, 1->115200, 2->expand com 1, 2->57600, 3->expand com 2, 3->56000, 4->expand com 3, 4->38400, 5->expand com 4, 5->19200, 6->14400, 7->9600, 8->4800, 9->2400. | cs com 1 baudrate 1! | set com 1 baudrate is 115200 | main com ->115200 expand com 1 ->9600 expand com 2 ->9600 expand com 3 ->9600 expand com 4 ->9600 |
| Serial port data length Settings x = {1-5}, y = {1-2}, 1->main com, ->8bit, 2 >expand com 1, 2->7bit, 3 >expand com 2, 4- >expand com 3, 5- >expand com 4, | ||||
| cs com [x] datalen [y]! | When the serial data bit is set to 7bit, if the current check bit is none, the check bit forces a surprise check and indicates “when setting databits to 7bit, the check digit cannot be set t o none,if the check digit is not set, odd check will be set by default!” For example: MAIN COM Send: cs com 1 datalen 2! Feedback information: when setting databits to 7bit, the check digit cannot be set to none,if the check digit is not set, odd check will be set by default! set com 1 datalen is 7 bit | cs com 1 datalen 1! | set com 1 datalen is 8 bit | main com ->8bit expand com 1 ->8bit expand com 2 ->8bit expand com 3 ->8bit expand com 4 ->8bit |
| Command Code | Description | Example | Feedback | Default Setting |
| cs com [x] stopbit [y]! | Serial port stop bit settings x = {1-5}, y = {1-2}, 1->main com, 1->1bit, 2 >expand com 1, 2->2bit, 3 >expand com 2, 4- >expand com 3, 5- >expand com 4, | cs com 1 stopbit 1! | set com 1 stopbit is 1 bit | main com ->1bit expand com 1 ->1bit expand com 2 ->1bit expand com 3 ->1bit expand com 4 ->1bit |
| cs com [x] paritybit [y]! | Serial port data verification Settings x = {1-5}, y = {1-3}, 1->main com, 1 >none, 2->expand com 1, 2->even, 3->expand com 2, 3->odd, 4->expand com 3, 5->expand com 4, Note:When the serial check bit is set to null.If the serial data bit is 7 bits, the data bit is forced to change back to 8 bits. | cs com 1 paritybit 1! | set com 1 paritybit is none | main com ->none expand com 1 ->none expand com 2 ->none expand com 3 ->none expand com 4 ->none |
| cs com [x] output type [y]! | Serial output type Settings x = {1-5}, y = {1-4}, 1->main com, 1 >rs232, 2->expand com 1, 2->rs232 3->expand com 2, +flow, 4->expand com 3, 3->rs485, 5 >expand com 4, 4->rs422 Note: rs232 +flow is not supported in main com; com3 and com4 do not support RS485 and RS422. | cs com 1 output type 1! | set com 1 output is rs232 | main com ->rs232 expand com 1 ->rs232 expand com 2 ->rs232 expand com 3 ->rs232 expand com 4 ->rs232 |
| cr com [x] config! | Read the serial port configuration information x = {0-5}, 0- >all com, 1- >main com, 2- >expand com 1, 3- >expand com 2, 4- >expand com 3, 5- >expand com 4, | cr com 1 config! | com 1 config info: baud rate:xxx data len:8bit/7bit stop bit:1bit/2bit parity bit: none/even/odd output type:rs232/ rs232+flow/rs485/ rs422 …… |
| Command Code | Description | Example | Feedback | Default Setting |
| Network Port Settings | ||||
| cs ip addr xxx.xxx.xxx.xxx! | set network ip address ip range 1.0.0.1~223.255.255.254 | cs ip addr 192.168.1.2! | set ip address is 192.168.1.2 | ip address is 192.168.1.100 |
| cs subnet xxx.xxx.xxx.xxx! | set network subnet mask xxx=254|252|248|240|224| 192|128|0 | cs subnet 255.255.255.0! | set subnet mask is 255.255.255.0 | subnet mask is 255.255.255.0 |
| cs gateway xxx.xxx.xxx.xxx! | set network gateway gateway range 1.0.0.1~223.255.255.254 | cs gateway 192.168.1.1! | set gateway is 192.168.1.1 | gateway is 192.168.1.1 |
| cs ip mode [x]! | set ip mode, x={0-1} 0=dhcp 1=static ip | cs ip mode 1! | ip mode is static ip | ip mode is static ip |
| cs tcp/ip port x! | tcp/ip port settings, x={1-65535} | tcp/ip port is 8000! | set tcp/ip port is 8000 | tcp/ip port is 8880 |
| cs udp port x! | udp port Settings, x={1-65535} | cs udp port 8001! | set udp port is 8001 | udp port is 8881 |
| cr ipconfig! | Network configuration query | cr ipconfig! | ip mode: static/dhcp ip: 192.168.1.100 subnet mask: 255.255.255.0 gateway: 192.168.1.1 mac address: 6C:DF:FB:00:00:00 tcp/ip mode:server tcp/ip port=8880 udp mode:server udp port =8881 | |
| Data Send | ||||
| N/A | Expand serial port data reporting data->cmd data (The data range is 1 to 512) x={1-4} 1->com 1 2->com 2 3->com 3 4->com 4 | COM1 : ABCD | COM1 : N/A MAIN COM : cs ch 1 report ABCD end! | |
| cs ch [x] cmd [data] end! | The data of the main serial port is issued data->cmd data (The data range is1 to 512 ) x={0 4} 0->all com 1->com 1 2->com 2 3->com 3 4->com 4 | MAIN COM : cs ch 1 cmd ABCD end! | MAIN COM : N/A COM1 : ABCD | |
| Command Code | Description | Example | Feedback | Default Setting |
| Relay Setting | ||||
| cs relay [x] to [y]! | relay switch x={0-4} y={0-1} 0- >all relay port 0->off 1- >relay port 1 1->on 2 >relay port 2 3- >relay port 3 4- >relay port 4 | cs relay 1 to 1! | set relay 1 open | |
| cr relay [x]! | relay inquiry x={0-4} 0->all relay port 1->relay port 1 2- >relay port 2 3- >relay port 3 4- >relay port 4 | cr relay 0! | relay 1 is open/close relay 2 is open/close relay 3 is open/close relay 4 is open/close all relays are open all relays are close | relay 1 is close relay 2 is close relay 3 is close relay 4 is close |
Here is another ASCII command list about Cascading Order.
| ASCII Commands | ||||
| Serial port protocol: baud rate:115200(default) Data bits: 8 Stop bits:1 Parity: none Flow control: none | ||||
| TCP/IP port: 8880 udp port:8881 | ||||
| x,y,z, XXX are parameters Error Code describe: E00 -> unknown command E01 -> parameter out of range E04 -> This feature is not supported | ||||
| Serial port expander id range:z = 1~999 Note: When cascading, the id numbers of all machines cannot be set to the same. | ||||
| VERSION V1.00.09 | ||||
| Command Code | Description | Example | Feedback | Default Setting |
| System Settings | ||||
| id[z] cs power x! | x ={0-1}, 1 = power on, 0 = power off x = on/off, on = power on, off =power of | id[1] cs power 1! / cs power on! | id[1] power state: power on | power on |
| id[z] cr power! | get current power state | id[1] cr power! | id[1] power state: power on/off | |
| Command Code | Description | Example | Feedback | Default Setting |
| id[z] cs reboot! | reboot the device | id[1] cs reboot! | id[1] reboot… id[1] com x config info: baud rate:xxx data len:8bit/7bit stop bit:1bit/2bit parity bit: none/even/odd output type: rs232/rs232+flow/ rs485/rs42 …… | |
| id[z] cs reset! | Reset to factory defaults | id[1] cs reset! | id[1] reset to factory defaults | |
| id[z] cr fw version! | Get Firmware version | id[1] cr fw version! | id[1] mcu boot:v1.00.01 mcu app :v1.00.13 | |
| id[z] cr status! | Get device current status | id[1] cr status! | get the product all status: power, id,com status, ip config,relay status; | |
| id[z] cs id [x]! | Set the ID of the serial port expander,x=1-999 | id[1] cs id 1! | id[1] set the serial id is 1 | serial id is 1 |
| id[z] cr id! | Query the ID of the serial port expander | id[1] cr id! | id[1] serial id is xxx | |
| id[z] cs product name xxx! | Set the product name Maximum support for 8 characters | id[1] cs product | id[1] set product | product name |
| id[z] cr product | Query product name | id[1] cr product | id[1] product | |
| Serial Port Settings | ||||
| id[z] cs com [x] baudrate [y]! | Serial port baud rate settings x = {1-5}, y = {1-9}, 1->main com, 1 >115200, 2->expand com 1, 2 >57600, 3->expand com 2, 3 >56000, 4->expand com 3, 4 >38400, 5->expand com 4, 5 >19200, 6->14400, 7->9600, 8->4800, 9->2400. | id[1] cs com 1 baudrate 1! | id[1] set com 1 baudrate is 115200 | main com ->115200 expand com 1 ->9600 expand com 2 ->9600 expand com 3 ->9600 expand com 4 ->9600 |
| Command Code | Description | Example | Feedback | Default Setting |
| id[z] cs com [x] datalen [y]! | Serial port data length Settings x = {1-5}, y = {1-2}, 1->main com, 1->8bit, 2 >expand com 1, 2->7bit, 3 >expand com 2, 4- >expand com 3, 5- >expand com 4, When the serial data bit is set to 7-bit, if the current check bit is none, the check bit forces a surprise check and indicates “when setting databits to 7-bit, the check digit cannot be set to none,if the check digit is not set, odd check will be set by default!” For example: MAIN COM Send: id[1] cs com 1 datalen 2! Feedback information: when setting databits to 7bit, the check digit cannot be set to none,if the check digit is not set, odd check will be set by default! id[1] set com 1 datalen is 7-bit | id[1] cs com 1 datalen 1! | id[1] set com 1 datalen is 8-bit | main com->8bit expand com 1 ->8bit expand com 2 ->8bit expand com 3 ->8bit expand com 4 ->8bit |
| id[z] cs com [x] stopbit [y]! | Serial port stop bit settings x = {1-5},y = {1-2}, 1->main com, 1->1bit, 2 >expand com 1, 2->2bit, 3 >expand com 2, 4- >expand com 3, 5- >expand com 4, | id[1] cs com 1 stopbit 1! | id[1] set com 1 stopbit is 1 bit | main com->1bit expand com 1 ->1bit expand com 2 ->1bit expand com 3 ->1bit expand com 4 ->1bit |
| id[z] cs com [x] paritybit [y]! | Serial port data verification Settings x = {1-5}, y = {1-3}, 1->main com, 1->none, 2 >expand com 1, 2->even, 3->expand com 2, 3->odd, 4 >expand com 3, 5->expand com 4, Note: When the serial check bit is set to null.If the serial data bit is 7 bits, the data bit is forced to change back to 8 bits. | id[1] cs com 1 paritybit 1! | id[1] set com 1 paritybit is none | main com ->none expand com 1 ->none expand com 2 ->none expand com 3 ->none expand com 4 ->none |
| Command Code | Description | Example | Feedback | Default Setting |
| id[z] cs com [x] output type [y]! | Serial output type Settings x = {1-5},y = {1-4}, 1->main com, 1->rs232, 2->expand com 1, 2->rs232 3->expand com 2, +flow, 4->expand com 3, 3->rs485, 5->expand com 4, 4->rs422 Note: rs232 +flow is not supported in main com; com3 and com4 do not support RS485 and RS422. | id[1] cs com 1 output type 1! | id[1] set com 1 output is rs232 | main com ->rs232 expand com 1 ->rs232 expand com 2 ->rs232 expand com 3 ->rs232 expand com 4 ->rs232 |
| id[z] cr com [x] config! | Read the serial port configuration information x = {0-5}, 0- >all com, 1- >main com, 2- >expand com 1, 3- >expand com 2, 4- >expand com 3, 5- >expand com 4, | id[1] cr com 1 config! | id[1] com 1 config info: baud rate:xxx data len:8bit/7bit stop bit:1bit/2bit parity bit: none/even/odd output type:rs232/ rs232+flow/rs485/ rs422 …… | |
| Network Port Settings | ||||
| id[z] cs ip addr xxx.xxx.xxx.xxx! | set network ip address ip range 1.0.0.1~223.255.255.254 | id[1] cs ip addr 192.168.1.2! | id[1] set ip address is 192.168.1.2 | ip address is 192.168.1.100 |
| id[z] cs subnet xxx.xxx.xxx.xxx! | set network subnet mask xxx =254|252|248|240|224|192| 128|0 | id[1] cs subnet 255.255.255.0! | id[1] set subnet mask is 255.255.255.0 | subnet mask is 255.255.255.0 |
| id[z] cs gateway xxx.xxx.xxx.xxx! | set network gateway gateway range 1.0.0.1~223.255.255.254 | id[1] cs gateway 192.168.1.1! | id[1] set gateway is 192.168.1.1 | gateway is 192.168.1.1 |
| id[z] cs ip mode [x]! | set ip mode, x={0-1} 0=dhcp 1=static ip | id[1] cs ip mode 1! | id[1] ip mode is static ip | ip mode is static ip |
| id[z] cs tcp/ip port x! | tcp/ip port settings, x={1-65535} | id[1] tcp/ip port is 8000! | id[1] set tcp/ip port is 8000 | tcp/ip port is 8880 |
| id[z] cs udp port x! | udp port Settings,x={1-65535} | id[1] cs udp port 8001! | id[1] set udp port is 8001 | udp port is 8881 |
| id[z] cr ipconfig! | Network configuration query | id[1] cr ipconfig! | id[1] ip mode: static/dhcp ip: 192.168.1.100 subnet mask: 255.255.255.0 gateway: 192.168.1.1 mac address: 6C:DF:FB:00:00:00 tcp/ip mode:server tcp/ip port=8880 udp mode:server udp port =8881 | |
| Command Code | Description | Example | Feedback | Default Setting |
| Relay Setting | ||||
| id[z] cs relay [x] to [y]! | relay switch x={0-4} y={0-1} 0- >all relay port 0->off 1- >relay port 11->on 2->relay port 2 3- >relay port 3 4- >relay port 4 | id[1] cs relay 1 to 1! | id[1] set relay 1 open | |
| id[z] cr relay [x]! | relay inquiry x={0-4} 0->all relay port 1->relay port 1 2- >relay port 2 3- >relay port 3 4- >relay port 4 | id[1] cr relay 0! | id[1] relay 1 is open/close id[1] relay 2 is open/close id[1] relay 3 is open/close id[1] relay 4 is open/close id[1] all relays are open id[1] all relays are close | relay 1 is close relay 2 is close relay 3 is close relay 4 is close |
| Cascade Control | ||||
| id[z] cs ch x cmd ABCD end! | The data of the main serial port is issued data->cmd data (The data range is1 to 512 ) z = {1~999},x={0-4}
Note: When cascading, the id numbers of all machines cannot be set to the same. | MAIN COM : id[1] cs ch 1 cmd ABCD end! | MAIN COM : N/A COM1 : id[1] ABCD | |
| Command Code | Description | Example | Feedback | Default Setting |
| N/A | Sub-machine data report data->cmd data (The data range is 1 to 512) When using cascading, when the extended COM of any machine reports data to the host, each machine must be in the cascading state, otherwise, the data received by the host will have errors. | COM1 : ABDC | COM1 : N/A MAIN COM : id[xxx] cs ch 1 report ABCD end! |
Documents / Resources
 | Prestel CSP-4 Network Serial Port Expander [pdf] User Manual CSP-4 Network Serial Port Expander, CSP-4, Network Serial Port Expander, Serial Port Expander, Port Expander |