1
OVERVIEW
1.1 Features
1
- 8
1
O
V
ER
VI
E
W
2
SYST
EM
CO
NF
IG
URA
T
IO
N
3
SPECI
F
IC
A
T
IO
N
S
4
F
UNCT
IONS
5
PREP
ARA
T
IO
N AND
SET
UP
6
P
A
RAM
E
T
E
R
SET
TI
NG
7
PRO
C
ESSI
NG
T
IM
E
8
PRO
G
R
AM
M
ING
(3) Enriched RAS functions
(a) Even if the control station goes down, a normal station (sub-control station) will
take over the control to continue data link. (Control station switching function)
(b) Any disconnected cable or faulty station can be isolated from the network, and
data link can be continued among normally operating stations. (Loopback
function)
Figure 1.11 Control station switching function
Figure 1.12 Loopback function
Switching
Control station
No.1
Sub-control station
No.2
Normal station
No.4
Normal station
No.3
Down
Control station
No.1
Loopback station
Normal station
No.6
Loopback station
Normal station
No.2
Normal station
No.5
Sub-control station
No.3
Loopback station
Normal station
No.4
Loopback station
Down
Down
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