Specifications  | 
  |   Interface : RS-485, 2 wires
  |   Power Dissipation : 1.2W (max.)
  | 
  |   Speed(bps) : 1200, 2400, 4800, 9600, 19.2K, 38.4K, 115.2K
  |   Power Requirement : 10Vdc ~ 30Vdc
  | 
  |   Status indicator : 8 input status LED displays
  | 
  | Output  | 
  |   Channel : 4 relay output
  |   DC Contact Rating : 2A @30Vdc; 0.6A @110Vdc
  | 
  |   SPST (form A) Channels : 2(N.O.)
  |   Relay On Time(Typical) : 3msec
  | 
  |   SPDT (form C) Channels : 2(N.O./N.C.)
  |   Relay Off Time(Typical) : 2msec
  | 
  |   Output Mode : Dry contact output
  |   Insulation resistance : 1000M ohms at 500Vdc
  | 
  |   AC Contact Rating : 0.6A @125Vac; 0.3A @250Vac
  | 
  | Digital Input  | 
  |   channel : 4 isolated input channels with common power
  |   Input Impedance : 3K ohms
  | 
  |   Logical Level 0 : +1Vdc (max.)
  |   Isolation Voltage : 3,750Vrms
  | 
  |   Logical Level 1 : +3.5Vdc ~ +24Vdc
  | 
  | Input Counter  | 
  |   Counter Channel : 4 digital input
  |   Length : 16-bit(0~65535)
  | 
  |   Frequency : 100Hz (max.)
  |