Receiver MANUAL (SWR-220U) Sejin Electron Inc.
FCC NOTICE THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITION: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDERSIRED OPERATION. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
Contents 1 2 General Specification...................................................................................................... 4 1.1 USB Standard ......................................................................................................... 4 1.2 System requirements ............................................................................................... 4 1.3 Electrical Specification ..........................................................................................
1 General Specification 1.1 USB Standard The USB IR receiver is a bus powered composite device. It is complied with USB standard version 1.1 and HID standard version 1.1. The USB transmission speed is 1.5Mbps, which is low speed USB. The USB related spec is available on the web page http://www.usb.org/ 1.2 System requirements The followings are the requirements for using the USB IR receiver. 1. An available USB Downstream port with “ A” type connector. 2.
2 Receiver settings 2.1 User ID setting There are two options for user ID setting. First one is in case the receiver has an optional serial EEPROM. Second one is in case the receiver has no the optional serial EEPROM. 2.1.1 User ID setting incase an EEPROM equipped on the receiver If the receiver has an optional serial EEPROM on the receiver board, the receiver keeps user ID even though the system power down. User ID setting procedure: 1.
3. Push the `ID ACK’ button located inside the small hole on the bottom side using an appropriate pin, the DATA indication LED will blink in every a second. 4. Aim the keyboard to the IR lens of Receiver and press any key other than the Left-Control, LeftShift, Right-Shift and Esc key or move mouse. Alternately, aim the remote control to the IR lens of Receiver and press any button.
2.1.2 1. User ID setting incase no EEPROM equipped on the receiver If the receiver has no the optional serial EEPROM or if the stored data and the CRC value in the EEPROM is not valid, the receiver blinks the DATA indication LED in every a second when Power up time. Operate any input device, keyboard, mouse or remote control, the receiver no longer blinking the DATA indication LED except a valid IR data indication blinking.
3 Schematic diagram 3.1 Schematic diagram with 18 Pin DIP type package VCC Y1 GND VCC OUT Q1 2N3906 330 R1 1 2 3 Num TSOP1156/1138 C1 47uF Photo Module C2 104 R3 1K Caps Scrl D1 LED D2 LED R4 330 R5 330 D3 LED R2 330 Power (Green) Data (RED) R6 330 D4 2 Color LED Power Control Option ID set/Wakeup S1 7 8 1.3K R7 9 10 USB Cable VCC JP1 VCC DD+ GND Shield U1 5 14 1 2 3 4 5 HEADER 5 12 13 C3 4.7uF C4 104 P1.0 P1.1 VPP VREG XtalIn/P2.1 XtalOut P0.0 P0.1 P0.2 P0.3 P0.4 P0.
3.3 Language option jumper setting When the optional serial EEPROM is not equipped on the receiver, the jumper JP2 on the schematic diagram is used for matrix ID selection. In the case, the Country code value in the HID descriptor table on chapter is always zero, which indicates not localized. The jumper JP2 must be ON for all non-US language version keyboards except the keyboards that use US matrix sheet.