Instruction Manuals
1-2 Channel RS232 relay board manual
1-2 Channel RS232 relay board w/IO manual
1-2 Channel USB relay board manual
8 Channel RS232 relay board manual
8 Channel RS232 relay board w/IO manual
8 Channel RS232 relay board w/ISO manual
8 Channel USB relay board manual
Relay Data Sheets
Standard Relay Datasheet - CIT relay specification sheet for the standard relays used on our boards.
Reed Relay Datasheet - Coto Reed Relay specification sheet for the optional relays used on our boards.
App Notes
Application Note 115 - How to determine if our serial relay boards will operate with a specific software or operating system.
Application Note 156 - Detailed board command information.
Application Note 158 - Operation and wiring examples for the I/O Ports and Opto-isolated Input Ports.
AC/DC Power Line Monitors
AC line monitor specifications and options (AC_line_monitor_datasheet.pdf, 435 Kb)
AC line monitor instruction manual (AC_Line_Monitor_Instruction_Manual.pdf, 381 Kb)
AC line monitor board layout (AC_Line_Monitor_Board_Layout.pdf, 62 Kb)
AC line monitor board drill template (AC_Line_Monitor_Board_Drill_Template.pdf, 51 Kb)
AC line monitor part number format (AC_Line_Monitor_Part_Number_Format.pdf, 82 Kb)