Westell 28MA208A, Руководство пользователя

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Section 28M-A20-8A0-20A
030-101678 Rev. A
R
0803IARA 3
Figure 2. Exploded View of OmniPak 8
6
4
8
T R T1 R1 T R T1 R1 T R T1 R1 T R T1 R1
T R T1 R1 T R T1 R1 T R T1 R1 T R T1 R1
CKT1
2
3 5 7
F1
2 AMP
+ PWR
GND
− PWR
CT CR CT1CR1
P1
P2
FACILITY RCV IN
FACILITY XMT OUT
2
CKT1
3 5
6
7
4 8
CT CR CT1CR1
CT CR CT1CR1 CT CR CT1CR1
CT CR CT1CR1 CT CR CT1CR1
CT CR CT1CR1 CT CR CT1CR1
FRAME
GND
TB2
TB3
FRAME
GND
Module
Compartment
Two Lock-Types
Available
Keyed Lock
Wire Access Through
TB2/TB3 used to
connect drain wires
Ground Lug*
Terminal Strip for External Power Supply
External
Facility
Facility Wiring
Compartment
Customer Wiring Area
Customer
Wirewrap-Pin
Compartment
Keyhole Mounting Slot
(one in each corner)
Wire Access Through
50-Pin/25-Pair
Facility Connector
Connectors Supply Fuse
Ground
Lug*
Specific jack type is
determined by the setting of
the 2-position switch to the
right of the jack.
RJ48C/S Jack
50-Pin/25-Pair Customer
Connector (RJ48H)
Customer Wirewrap
Connector (4-Pin)
For Drain Wire Static Wrist Strap Jack
(ESD Ground)
(Locking, Hinged
(Cover Removed)
See Figure 3 for isometric
exploded view of assembly
showing doors/covers removed.
Door of
TB1
TB4 TB8 TB12 TB16
TB6 TB10 TB14 TB18
S
C
S
C
S
C
S
C
S
C
S
C
S
C
S
C
TB7 TB11 TB15 TB19
TB5 TB9 TB13 TB17
ESD GND
RJ48S/RJ48C Jack Switch
Cover Removed for
Visual Clarity)
Gasket/Grommet
Gasket/Grommet
Protects 8
200 MECHANICS
and Power Supply
Modules
Wirewrap
Self-
Hole
Centering
Power
For Drain Wire or
For Drain Wire
or Ground Lug*
* Any conductor connected to the/any ground lug must be
a #6 AWG copper wire. Unplated conductor (wire)
must be brought to a bright finish and anti-oxidant coated
before connection. All hardware must be listed by an NRTL.
Do not mix or use dissimilar metals when performing
bonding/grounding connections.
2.1.7.1 RJ48C/S Jacks (See Paragraph 2.2.6.2)
Under the module compartment are eight, exterior-accessible,
RJ48C/S jacks and accompanying switches. See Paragraph
2.2.6.2 for a description of these interior-access options.
2.1.7.2 RJ48H 50-Pin Connector (See Paragraph 2.2.6.3)
Under the module compartment is a single, exterior-accessible,
25-pair, RJ48H connector for customer connections. See Para-
graph 2.2.6.3 for a description of this particular customer
connection option.
2.2 Interior Features
The OmniPak
t
8 contains various features accessed from the
interior of the assembly. Some of these features are shown in
Figure 2 and explained in the paragraphs that follow.
2.2.1 Plug-in Module Mounting Slots
2.2.1.1
The OmniPak
t
8 can accommodate up to eight 200
MECHANICS
r
-type modules (or four 400-type modules) and
thus provides eight mounting slots, complete with card guides
and eight, 56-pin, card-edge connectors. The first, left-most slot
of the OmniPak
t
8 corresponds with RJ48C/S jack CKT 1 or
wirewrap pin connector CKT 1. The last, right-most slot corre-