Microsemi PD69208 - Page 14

PD-IM-7648 Evaluation System - User Guide
Copyright © 2013 Microsemi 14
Rev 1.0 / 25 Dec 13 Analog Mixed Signal Group
1 Enterprise, Aliso Viejo, CA 92656, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308
RS232 signal level comes from hosting system and has been converted to UART signals levels, then directed to
DB (Isolation circuitry on daughterboard).
MB: J33
Pin No. Signal Name Description
1, 4, 6,
7, 8, 9
N.C
Not connected.
2
Rx_RS232
Rx RS232 level signal (receive), between the hosting system and the
MB.
3
Tx_RS232
Tx RS232 level signal (transmit), between the hosting system and the
MB.
5
GND_F
Floating ground.
 Manufacturer: Coxoc
 Manufacture part number: 205A-09MGPBBA3
Figure 14: Isolated RS232
8. Isolated UART Interface (see Figure 15)
UART interface from hosting system and MB, then directed to DB (Isolation circuitry on daughterboard)
.
MB: J26
Pin No. Signal Name Description
1
3_3V_iso
3.3 VDC coming from hosting system (isolated from PoE domain), referenced
to 'GND_Floating.'
2
UART_Rx_isolated
Rx UART level signal (receive), between hosting system and MB (3.3 VDC).
3
UART_Tx_isolated
Tx UART level signal (transmit), between hosting system and MB (3.3 VDC).
4
GND_F
Floating ground.
5
N.C
Not connected.
 Manufacturer: CviLux
 Manufacture part number: CI25-05P1V00