Operation Manual

4. DIAGNOSTIC TEST OPERATION
EO18-11004A
4.6 Loop BackTest
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4.6 Loop Back Test
(1) Contents
The three Serial Interface Ports are checked. This test requires loop back connectors for the
ports.
(2) Operation
Control Lock: BLIND
8006 [AT/TL]
(3) Print Sample
NOTES: 1. After the Loop Back Test for the first Port is completed, depressing the [CPN] key (for
MA-1535)/[AT/TL] key (for FS-1535) in default key layout will perform the test for the
second port. When the test for the third port is completed, a receipt is issued, resulting
that this test is completed.
2. The wiring pattern of the loop back connectors is as shown below.
P12V 1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
P5V 9