REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04
REF542
plus
: Installation and Commissioning
54 / 80
Figure 18:
Loop-back cable for the RHMI serial ports test
The test will consist in the following steps:
The LCD page for the serial ports test is displayed according to next figure:
S E R I A L
P O R T S
T E S T
P l e a s e ,
b e
s u r e
t h a t
t h e
t w o
s e r i a l
p o r t s
a r e
c o n n e c t e d
w i t h
t h e
l o o p b a c k
c a b l e
T E S T
O K
↵
From RHMI test page
Shown after test end
2 sec
after test
end
To RHMI
test page
Figure 19:
Serial Ports Test Page
RS485 to RS232 communication test
10 telegrams will be sent to the optical port.
