Press Release Summary:
Model DIN485+ allows standard RS232 port to communicate with individual RS422 device or with multiple devices within RS485 network. It supports RS422 full duplex mode as well as RS485 full or half duplex master and slave modes. Onboard LEDs indicate that device is properly powered and when device is transmitting and receiving. Six-position screw terminal block on board provides connection to external devices.
Original Press Release:
Sealevel Systems, Inc. Announces RS-232 and RS-422/485 DIN Rail Interface Converters
Liberty, SC (Jan. 21, 2002) Sealevel Systems, Inc. announces the DIN485+, as a new addition to its popular interface converter product line. The DIN485+ interface converters allow a standard RS-232 port to communicate with an individual RS-422 device or with multiple devices within an RS-485 network. Both devices support RS-422 full duplex mode as well as RS-485 full or half duplex master and slave modes. This gives the user flexibility in configuring the device to meet their specific application needs. Onboard LEDs indicate that the device is properly powered and also illuminate when the device is transmitting and receiving data to assist in verifying acceptable communications. Connection to external devices is provided by a six-position, on board screw terminal block. A 24V power supply is available for purchase.
In RS-422 and RS-485 Auto modes, the device works seamlessly with the standard operating system serial driver. This mode utilizes the onboard Microchip PIC micro controller to sense the baud rate and control the transmitter enable signal. Two additional methods are provided to control the communication line in RS-485 mode. The "Data Enable" mode uses the transmitted data to enable the transmitter and requires no software drivers. The "RTS Enable" mode uses the UART modem control signal RTS. This can be used with Sealevel System's RTS control serial driver, if RTS control is not implemented in the application.
In addition, the DIN485+I provides optical isolation and surge protection to prevent damage from ground loop phenomenon on the RS-422/485 lines.
The DIN485+ (Part# 1104) retails at $139.00. The DIN485+I (Part# 1105) is $159.00. The 24V DIN Rail power supply (PS101) is priced at $59.00. All products are available immediately from stock. OEM and volume pricing is available.