Interface 3, 20 RXAUX RX RS232 Aux. Interface 4 RTX485 - RTX- RS485 Main Interface 5 RTX485 + RTX+ RS485 Main Interface 7 SGND Signal Ground 8 OUT1 + Output 1 + 11 OUT2 + Output 2 + 18 EXT TRIG + External trigger + 19 EXT TRIG - External trigger - 10, 12, 22 I/O REF Input/Output reference 17 IN1 - Input 1 - 6, 14, 15, 16, 23, 24 N.C. Not Connected * Pins 1 and 25 are connected together internally. 851000292 (Rev. B) Power Supply Power can be supplied to the scanner through the pins provided on the 25-pin connector used for communication with the host. The power must be between 10 and 30 Vdc only. SCANNER USER INTERFACE VS GND CHASSIS V+ (10-30 Vdc) GND Inputs The yellow LED is on when the External Trigger forces a current flow through the EXT TRIG+ and EXT TRIG- pins. This input is optocoupled and can be driven by both an NPN or PNP type command. The connections are indicated in the following diagrams: SCANNER Vext 30 Vdc max. EXT TRIG+ Î EXTERNAL TRIGGER EXT TRIG- Signal Figure 2 - Input NPN command using external power SCANNER EXTERNAL TRIGGER Figure 4 - Input PNP command using external power SCANNER EXTERNAL TRIGGER Figure 5 - Input PNP command using scanner power For DS1100, the general purpose input IN1 is used in the Standard Application Program to store the code verifier (see “Store Verifier HW” in the WinHost Help On Line). Use the input connections indicated in the figure below. For DS2200, this input is not used. SCANNER USER INTERFACE Figure 6 - IN1 - Input command...