Ricoh G031 Service Manual page 130

DIAGNOSTIC TEST MODES
Loopback Connector for the Centronics Interface
Loopback Connector for the RS232C Interface
G031/G032
\ S T R O B E 1
D A T A 1 2
D A T A 2 3
D A T A 3 4
D A T A 4 5
D A T A 5 6
D A T A 6 7
D A T A 7 8
D A T A 8 9
/ A C K 1 0
B U S Y 1 1
P E 1 2
S E L E C T 1 3
/ C A N 1 4
/ N C 1 5
G N D 1 6
G N D 1 7
/ D I A G 1 8
G N D 1 9
G N D 3 0
/IPRIME 3 1
/ F A U L T 3 2
N C 3 3
N C 3 4
N C 3 5
/ S E L E C I N 3 6
G031M504.WMF
T X D 2
R T S 4
D T R 2 0
R X D 3
C T S 5
D S R 6
G031M505.WMF
4-28 SM