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GE Information
D.20 RIO - HARDWARE USER’S MANUAL
D.20 LINK
CHAPTER 3: CONNECTING TO DEVICES AND NETWORKS
Table 9: Redundant D.20 RIO looped
Table 10: Redundant D.20 RIO redundant link
Equipment Block Diagram
Switch
Settings
Description
SW1: Default
SW2: Default
SW3: Default
This scenario provides
redundancy in the event one of
the D.20 RIO devices fails or is
taken offline for maintenance. It
also ensures that D.20 Link
communications are maintained
in the event of a Link failure.
The loop starts at D.20 link port
A of the first D.20 RIO device and
terminates at D.20 link port B of
the second D.20 RIO device.
Note
: Daughter boards (GE part
number 540-0207 for D20 A,S,
and K boards; GE part number
540-0209 for the D20 C board)
are not supported for this
scenario and must be removed
from all peripherals.
Note
: If both D.20 RIO to
peripheral D.20 cable lengths
are between 114 and 240 inches
(2.9 m and 6 m), then a repeater
must be installed (anywhere in
the D.20 link chain).
Equipment Block Diagram
Switch
Settings
Description
SW1: ON
SW2: Default
SW3: Default
This scenario provides
redundancy for the D.20 RIO
devices as well as the D.20 Link.
One loop begins at D.20 link port
A on the first D.20 RIO device
and the second loop begins at
D.20 link port B on the second
D.20 RIO.
Note
: Daughter boards are
required to support this
functionality: GE part number
540-0207 for D20 A, S, and K
boards; GE part number 540-
0209 for the D20 C board.
Note
: This setup requires two
D.20 cables per peripheral (GE
part number 977-0089/xxx), one
D.20 Adaptor (GE part number
540-0313).
Note
: With respect to the D.20
link splitters, all J1/J2 ports must
be connected to J1/J2 ports,
and all J3/J4 ports must be
connected to J3/J4 ports.
D.20 RIO
No. 1
D.20 RIO
No. 2
...
...
Secure LAN
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A
B
A
B
J1 J2
J1 J2
J1 J2
J1 J2
J1 J2
Redundant Secure
LAN (optional)
D400
D400
D.20 RIO
No. 1
D.20 RIO
No. 2
Secure LAN
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A
B
A
B
J1 J2
J1 J2
J1 J2
J1 J2
Redundant Secure
LAN (optional)
D400
D400
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J1 J2
D.20 Adaptors
T
P1 P2
J1 J2
J3 J4
P1 P2
J1 J2
J3 J4
P1 P2
J1 J2
J3 J4
P1 P2
J1 J2
J3 J4
P1 P2
J1 J2
J3 J4
T