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The "Enet-HDLC/PLL Series" is an Ethernet/HDLC (LAP-B) protocol converter that enables network communication for independently synchronized HDLC (LAP-B) devices. It features an integrated PLL, making it a higher model in the Enet-HDLC series, and the entire protocol stack is developed in-house. Additionally, it incorporates both LAP-B and TCP/IP protocols, allowing HDLC (LAP-B) devices to communicate over a network with UNIX machines and others through this series. 【Features】 ■ Built-in switching power supply (AC 100-240V) model ■ Operates in asynchronous balanced mode (ABM) with LAP-B procedure class ■ Ethernet side comes standard with TCP/IP and ARP ■ Communication settings and conditions can be configured interactively using the HDLC channel as an asynchronous serial ■ Ethernet channel is standard equipped with 10/100Base (automatic switching) *For more details, please refer to the PDF documentation or feel free to contact us.

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◆It is possible to extend the distance between RS232C devices up to 1200m. It is also used for converting signal levels between a computer's RS232C and measuring instruments' RS422. ◆The RS232C side connector is a D-sub 9-pin female (DCE configuration) that can be directly connected to the D-sub 9-pin male RS232C port of IBM-compatible DOS/V machines. ◆The RS422 side connector is a compact 5-pin terminal block designed for easy cable installation. ◆A surge absorption chip protection circuit is built into the RS422 side. ◆As a sister model, there is also an RS232/RS485 converter [RS485/N].

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■ In addition to one-to-one communication, one-to-n and n-to-m communication are also possible. ■ The [DL-1200R] can achieve wireless transmission over a maximum distance of 1 km (line of sight). Additionally, compared to SS wireless, it may be able to communicate by circumventing obstacles. ■ Once the ID and communication conditions for each device are set, they are stored in FLASH memory and operate under those conditions each time they are powered on. ■ It is equipped with a function to test the wireless communication status, allowing for verification during installation. ■ It has obtained technical standards conformity certification.

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◆ Equipped with automatic recognition and switching function for 100/10Mbps, full duplex/half duplex. ◆ Network connection establishment/termination can be done from either the [Enet-100R2] side or the host side. ◆ Communication conditions, Ethernet-related addresses, etc. can be set interactively in program mode. Methods using terminal software + RS232C on a computer and TELNET LOGIN are available.

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◆The Ethernet side communication protocol comes standard with TCP/IP, UDP, and TELNET, and the network-side communication partner devices communicate with [Enet-100R2] using TCP and UDP sockets. ◆It is equipped with automatic recognition and switching functions for 100/10Mbps, full duplex/half duplex, allowing for flexible system construction. ◆The opening/closing of network connections can be performed from either the [Enet-100R2] side or the host side. Incoming data during an open connection is sent to the network partner device in packet units, and only the data portion of packets from the network partner device is sent to RS232C. ◆Communication conditions, Ethernet-related addresses, etc., can be interactively set in program mode. These condition settings are stored in FLASH ROM. Settings can be made using a terminal software and a computer's RS232C or via TELNET LOGIN. Additionally, with the incorporation of FLASH ROM, online firmware version upgrades are also possible.

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The LAP-B protocol embedded in [Enet-HDLC] is a subset that adds features 2 and 8 to the basic functions of HDLC's BAC. [Enet-HDLC] operates in Asynchronous Balanced Mode (ABM), and the procedure class functions with LAP-B. The commands and responses supported by [Enet-HDLC] are as follows: Commands: I, RR, RNR, SABM, DISC Responses: RR, RNR, FRMR, UA, DM

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◆RS232C devices can be connected using a 2-wire bus line, allowing for the construction of a low-cost long-distance network with CSMA/CD. (Maximum bus line length: 1.2 km, maximum number of connections: 32 devices) ◆The RS232C side connector is a D-sub 9-pin female (DCE configuration) that can be directly connected to the D-sub 9-pin male RS232C port of IBM-compatible DOS/V machines. ◆The RS485 side connector is a compact 5-pin terminal block designed for easy cable installation. ◆A surge absorption chip protection circuit is built into the RS485 side. ◆As a sister model, there is also the RS232C/RS422 conversion connector [RSCV-T/N].

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◆ The communication conditions for the serial channel and the settings for various addresses of the Ethernet channel are configured once in program mode and stored in flash ROM. ◆ Protocols that are appropriately configured can communicate without the need for complex procedures that take the other protocol into account. ◆ The storage of various setting conditions to flash ROM is done using either synchronous RS232C or TELNET LOGIN. ◆ The serial channel side has an input buffer of 96k bytes and an output buffer of 96k bytes, allowing for synchronization of different communication procedures. ◆ The Ethernet channel supports 10Base-T and 100Base-TX as standard (automatic recognition).

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◆ Channel switching is performed via commands using ASCII character strings. The default command string is "LINK#nCR+LF". The header part "LINK#" can be modified within the memory switch. ◆ The data transmitted and received can be either ASCII or binary. ◆ In addition to the channel switching commands, a rich set of commands to control the multiplexer is provided, reducing the burden on the host application. - Clear buffer - Stop transmission - Resume - Monitor control lines - Automatic scanning - Line-by-line reading - Control line management - Broadcast communication, etc. ◆ The communication conditions for each channel can be set individually, allowing for flexible support for connections between different types of devices where communication conditions cannot be unified.

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◆ The communication conditions for each channel can be set individually, allowing for flexible support for connections between different types of devices where communication conditions cannot be standardized. - Communication speed: 50 to 19200 bps - Stop bits: 1/2 - Parity: Odd/Even/None - Bit length: 7/8 - Flow control: XON/XOFF - RTS/CTS - DTR/DSR ◆ In addition to commands for channel switching, a rich set of commands to control the multiplexer is provided, reducing the burden on the host application. - Clear buffer - Stop/Resume transmission - Control line monitoring - Automatic scanning - Line unit reading - Control line control - Broadcast communication, etc. ◆ With a diverse lineup including isolated types with various channel numbers and types with RS530 interfaces, we support system construction. * RS530 standardizes the electrical characteristics of RS422 to a Dsub 25-pin configuration. Therefore, it can be directly connected to RS422 devices.

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◆ The transmission line incorporates electrostatic measures and fail-safe circuits, enabling stable communication. - Maximum total extension distance: 1.2 km - Maximum number of connections: 32 units (when connected via RS485 bus line) - Maximum communication speed: 230.4 Kbps ◆ A high-speed response silicon surge absorber is installed on the RS485/RS422 side to prevent external noise interference. ◆ The Ethernet side comes standard with TCP/IP, UDP, ARP, FTP, and TELNET built-in.

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