User Manual

1 - 4 MR400 RFID Reader Module, Integration Guide
Host Interface
The host interface connector consists of a PCB connector p/n Molex 54548-1470, 0.50mm (.020") pitch
FFC/FPC connector, 1.20mm (.047") height, right angle, SMT, ZIF, bottom contact style, with 14 circuits.
Table 1-1 Host Interface Connector J1
Pin #
Signal
Names
Dir
Description
1 +5Vdc I Regulated +5Vdc (4V - 5.5V), 2A max,
2 +5Vdc I Regulated +5Vdc (4V - 5.5V), 2A max,
3 +5Vdc I Regulated +5Vdc (4V - 5.5V), 2A max,
4 WAKE I wake reader up from sleep mode
5 READY O reader is ready to accept command
6 GPIO_1 IO General purpose input or output, 3.3V TTL, user configurable, default to input
7 GND I Ground
8 RESET_N I reset reader to default state
9 GPI_2 IO General purpose input or output, 3.3V TTL, user configurable, default to input
10 GPIO_3 IO General purpose input or output, 3.3V TTL, user configurable, default to input
11 GND I Ground
12 TTL_TX O • 3.3V TTL Serial Transmit Data, 5V tolerant,
13
TTL-RX I • 3.3V TTL Serial Receive Data, 5V tolerant,
14
GND I • Ground