Kearfott_Isolation_Checkout
Sch/PCB Doc. No. 100221339

POWER
Sh 2
Connect +5V J1 pin 3,6 
  Return on J1 pin 1,4 
Verify 5V at TP4 ( with respect to Kearfott GND ) 
Verify current draw about 80 mAmps
Verify 5V at TP18 ( with respect to MVC GND )

1 PPS
Connect 1PPS TTL Pulse into J6 pin 4
  Return on J6 pin 3
Verify 1 PPS TTL pulse to Kearfott on J1 pin 2,5 with respect to J1 pin 1,4

TRIG RS232
Connect cable assembly to J7
Connect DB9 "TRIG" to RS232 from computer ( part of J7 assembly )
Connect cable assembly to J4
Connect jumper J5 pins 1 and 2
Verify complementary RS485 pulses on J4 pins 3 and 6
  Return on J4 pin 1

TRIG TTL
Connect cable assembly to J7
Connect TRIG TTL pulse into J7 pin 14
  Return on J7 pin 7
Connect cable assembly to J4
Verify complementary RS485 pulses on J4 pins 3 and 6
  Return on J4 pin 1

GPS RS232
Connect cable assembly to J7
Connect DB9 "GPS" to RS232 from computer ( part of J7 assembly )
Connect DB9 "RS232_GPS" to RS232 from computer to J2
Verify communication from MVC to Kearfott
  BAUD rate 9600

BI-DIRECTIONAL RS232
Connect cable assembly to J7
Connect DB9 "BI-DIR" to RS232 from computer ( part of J7 assembly )
Connect DB9 "RS232_BI_DIR" to J3
Connect jumper J8 pins 1 and 2
Verify two-way communications between MVC and Kearfott*
  BAUD rate 115200

BI-DIRECTIONAL RS485 FULL DUPLEX
Connect cable assembly to J7
Connect DB9 "BI-DIR" to RS232 from computer ( part of J7 assembly )
Connect DB9 "RS485_FULL" to J3**
Connect jumper J8 pins 2 and 3
Verify two-way communications between MVC and Kearfott*
  BAUD rate 115200


* TeraTerm https://ttssh2.osdn.jp/index.html.en
** Dtech USB 2.0 to RS422/RS485