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The following table describes the components to be configured in the fiber ring networking scenario.
Location
Component
LAN switch
(optional)
Smart
Fitting
array
bag for
controller
optical
ring
switching
Miniature circuit
breaker (MCB)
Box-type
Three-
transformer
phase
power
switch
Select either an MCCB or a knife fuse switch as the three-phase power switch. If you select an
⚫
MCCB, ensure that the let-through energy of the MCCB meets requirements. The breaking
capacity depends on the limited short-circuit current on the low voltage side of the box-type
transformer.
Models of the components inside the box-type transformer are specified by the box-type
⚫
transformer vendor.
Recommended Model or
Specifications
UT-H605 or ES1000
Low-
speed
FTLF1323P1BTR-HW
optical
module
PLCLC5S-ST3P302-HW, LC-LC-S2-
Optical
L2, 3ECA1031LCLC002-01-F, or LP-
jumper
LP-2S-P-SM-002
Recommended rated current: 32 A;
number of poles: 2
⚫
When the rated AC voltage on
the low-voltage side of the box-
type transformer is less than or
equal to 500 V, the rated voltage
of the knife fuse switch should be
greater than or equal to 600 V.
When the rated AC voltage on
⚫
Knife
the low-voltage side of the box-
fuse
type transformer is greater than
switch
500 V and less than or equal to
(solution
800 V, the rated voltage of the
1)
knife fuse switch should be
greater than or equal to 800 V.
⚫
Recommended rated current of
the fuse: 32 A; rated current of
the knife fuse switch box ≥ 32 A;
number of poles: 3 (3 fuses for
each knife fuse switch box)
When the rated AC voltage on
⚫
the low-voltage side of the box-
type transformer is less than or
equal to 500 V, the rated voltage
of the molded case circuit breaker
(MCCB) should be greater than or
equal to 600 V.
When the rated AC voltage on
⚫
MCCB
the low-voltage side of the box-
(solution
type transformer is greater than
2)
500 V and less than or equal to
800 V, the rated voltage of the
MCCB should be greater than or
equal to 800 V.
Let-through energy ≤ 1.26 x 10
⚫
2
A
s
Recommended rated current: 32
⚫
A; number of poles: 3
6
5
Component
Quantity
Source
1
Can be
2
purchased
from Huawei
8
1
Scenario
⚫
with a
double-
Prepared by
column
the
transformer:
customer
1
⚫
Scenario
with a dual-
split
transformer:
2
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