Specifications

MACRO CPU Board
3U MACRO CPU Board Connector Pinouts 23
J7: (JRS232) Serial Port Connector
(10-pin Header at Location C-1)
Front View
Pin # Symbol Function Description Notes
1 N.C. No connection
2 DTR BIDIRECT Data Terminal Read
y
Just tied to “DSR”
3 TXD/ OUTPUT Send Data Transmit data to hos
t
4 CTS INPUT Clear to Sen
d
Host Read
y
bi
t
5 RXD/ INPUT Receive Data Receive data from hos
t
6 RTS OUTPUT Request to Send PMAC Ready bit
7 DSR BIDIRECT Data Set Read
y
Just tied to “DTR”
8
N
.C. OUTPUT
N
o Connection
9 GND COMMON PMAC Common
10 +5V OUTPUT +5Vdc Supply Power supply out
Circuitry for J7- JRS232 Interface