Instruction Sheet
24290-A
ADCP-90-459
Issue 2, June 2016
FMT
Two Rack Unit (2RU)
Fiber Management Tray (FMT)
2RU FMT (Micro-VAM Configuration Shown)
Content Page
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1 PRODUCT INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2 Configurations and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2.1 Termination (Universal Entry) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.2 Termination (Left Entry for IFC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.3 Micro-VAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.4 48-Position Termination/Splice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2.5 Bulk Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 Attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2 DIMENSIONS AND SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3 UNPACKING THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4 MOUNTING THE 2RU FMT ON THE RACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5 INSTALLING MICRO-VAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
(continued)
300001717914 Rev B Page 1
www.commscope.com © 2016 CommScope. All Rights Reserved.
ADCP-90-459 • Issue 2 • June 2016
Content Page
6 INSTALLING AND ROUTING CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1 General Cable Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Internal Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1 Opening the Tray. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2 Sliding Adapter Packs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.3 Micro-VAMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.4 Closing the Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2.1 Termination (Universal Entry). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2.2 Termination (Left Entry for IFC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2.3 Micro-VAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.2.4 48-Position Termination/Splice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2.5 Bulk Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
INTRODUCTION
This manual describes the Two-Rack Unit (2RU) Fiber Management Tray (FMT) and provides
all information required to install and use this product.
Revision History
ISSUE DATE REASON FOR CHANGE
1 3/2011 Original
Trademark Information
CommScope (logo), CommScope, and ADC are trademarks, Scotchlok are registered trademarks of 3M
Company. FiberLok is a trademark of 3M Company. VELCRO is a registered trademark of Velcro
Industries, B.V.
Admonishments
Important safety admonishments are used throughout this manual to warn of possible hazards to
persons or equipment. An admonishment identifies a possible hazard and then explains what
may happen if the hazard is not avoided. The admonishments — in the form of Dangers,
Warnings, and Cautions — must be followed at all times. These warnings are flagged by use of
the triangular alert icon (seen below), and are listed in descending order of severity of injury or
damage and likelihood of occurrence.
Danger: Danger is used to indicate the presence of a hazard that will cause severe personal
injury, death, or substantial property damage if the hazard is not avoided.
Page 2
© 2016 CommScope. All Rights Reserved.
Warning: Warning is used to indicate the presence of a hazard that can cause severe personal
injury, death, or substantial property damage if the hazard is not avoided.
Caution: Caution is used to indicate the presence of a hazard that will or can cause minor
personal injury or property damage if the hazard is not avoided.
General Safety Precautions
Caution: Fiber optic cables may be da maged if be nt or curved to a radius that is le ss than the
recommended minimum bend radius. Always observe the recommended bend radius limit when
installing fiber optic cables and patch cords.
Danger: Exposure to laser radiation can seriously damage the retina of the eye. Do not look
into the ends of any optical fiber. Do not assume t he laser power is turned-off or that the fiber is
disconnected at the other end.
ADCP-90-459 • Issue 2 • June 2016
Caution:
Improper handling can damage fiber optic cables. Do not bend fiber optic cable more
sharply than the minimum recommen ded ben d radius spec ified by th e cable manufa cturer. D o not
apply more pulling force to the c ab le than spec ified . D o not co mpress th e fi ber or al low it to kink .
Caution: Placing a load in excess of 12 pounds (5.4 kg) onto an open tray will result in
misalignment or damage to the tray.
1 PRODUCT INTRODUCTION
This section introduces the Two-Rack Unit (2RU) Fiber Management Tray (FMT).
1.1 General Description
The Two-Rack Unit (2RU) Fiber Management Tray (FMT) is a rack-mount fiber optic panel
consisting of a basic chassis with a slide-out drawer and a drop-in plate (DIP) installed inside
the drawer to provide various functions such as cable termination. The basic chassis is the same
for all models of the 2RU FMT. The drop-in plate, which is installed in the factory, depends on
customer order. Figure 1 shows a 2RU FMT with a drop-in plate providing a micro-VAM
splitter function.
The 2RU FMT is available with the following rack-mount options:
• EIA or WECO, 19-inch (48.26 cm);
• EIA or WECO, 23-inch (58.42 cm);
• ETSI, 20.28 inch (51.51 cm);
• All rack-mount options (EIA, WECO, or ETSI) provide the following recess options: 2.2inch (5.59 cm), 5-inch (12.70 cm), 6-inch (15.24 cm), or 40 mm (1.6 inch).
© 2016 CommScope. All Rights Reserved.
Page 3
ADCP-90-459 • Issue 2 • June 2016
24291A
DROP-IN
PLATE (DIP)
BASIC
CHASSIS
1.2 Configurations and Components
The 2RU FMT is currently available in a variety of DIP configurations, with more being
developed based on customer requests. The configurations available as of this printing of this
manual are:
• Termination (FMT-GRT, universal entry);
• Termination (FMT-GN7, left entry for Intrafacility Fiber Cable);
• Micro-VAMs (FMT-GVM, universal entry);
• 48-position termination/splice (FMT-GTL, left side splice, right side termination).
• Bulk storage (FMT-GBS, universal entry).
For multifiber cable assemblies, FMTs with termination for IFC (left entry) is your best choice. If
you are installing patch cords terminated with adapters, universal en try is your best ch oice.
1.2.1 Termination (Universal Entry)
Figure 2 shows the main external features of the 64-position termination model (available with
up to 72-terminations.
Figure 1. 2RU FMT (Micro-VAM Model Shown)
The features shown include the following (going from bottom left clockwise):
• Slide Latches (2)—Hold tray closed. Sliding latches inward releases tray to be opened.
Page 4
© 2016 CommScope. All Rights Reserved.
ADCP-90-459 • Issue 2 • June 2016
• Radius Limiters (4)—Maintain a protective, minimum-bend radius for cables routed into
tray. There are two front and two rear radius limiters, as shown.
• Sliding Adapter 6-Packs (8)—Provide easy access for connecting cables and cleaning
connectors and adapters. A variety of singlemode and multimode connector types are
available from ADC. For details, refer to the product catalog.
• VELCRO Loop Tie-Down Points (Each Side)—Are used to secure cables to the side of
the tray using the velcro loops provided with the product.
• Wax Lacing Tie-Down Points (Each Side)—Are used to secure cables on the back of the
tray using wax lacing (not provided).
• Mounting Brackets (2)—Are used to fasten the tray to the rack.
• Sliding Radius Limiters (2)—Provide protected entry points for cables. The movement
of these radius limiters is controlled for optimum slack management.
• Keylock (Optional)—Provides a means to lock the tray when closed.
VELCRO LOOP
(PROVIDED)
TIE-DOWN POINTS
(EACH SIDE)
SLIDING
ADAPTER
6-PACKS
RADIUS
LIMITER
(2 PLACES)
RADIUS
LIMITER
(2 PLACES)
WAX LACING
TIE-DOWN POINTS
(2 EACH SIDE)
LOCK OPEN
LATCH
SLIDE
LATCH
(2 PLACES)
24300-A
MOUNTING
BRACKET
(2 PLACES)
SLIDING RADIUS
LIMITER (2 PLACES)
KEYLOCK
(OPTIONAL)
Figure 2. 64-Position Termination Only (Universal Entry) 2RU FMT
© 2016 CommScope. All Rights Reserved.
Page 5
ADCP-90-459 • Issue 2 • June 2016
KEYLOCK
(OPTIONAL)
SLIDING
ADAPTER
6-PACKS
WAX LACING
TIE-DOWN POINTS
(EACH SIDE)
SLIDE LATCH
(2 PLACES)
SLIDING RADIUS
LIMITER (2 PLACES)
MOUNTING
BRACKET
(2 PLACES)
24292-A
VELCRO LOOP
(PROVIDED)
TIE-DOWN POINTS
(EACH SIDE)
1.2.2 Termination (Left Entry for IFC)
Figure 4 shows the external features of the 72-position left-entry model, intended for use with
IFC. Except for the left-side entry, the components are similar to the universal entry model. For
a definition of the callouts, refer to subsection 1.2.1.
Figure 3. 72-Position Termination (Left Entry for IFC) 2RU FMT
1.2.3 Micro-VAM
Figure 4 shows the 64-position micro-VAM model, which has micro-VAMs in place of adapter
6-paks. VAMs (Value Added Modules are housings for fiber optic splitters and Wave Division
Multiplexers (WDM).
Figure 5 shows an example of a dual-circuit micro-VAM with its schematic label.
Micro-VAMs can be either single circuit or dual circuit, and can be populated one at a time.
• Single circuit micro-VAMs have one input port and two output ports.
• Dual circuit micro-VAMs have two input ports and four output ports.
2RU FMT capacity is 12 inputs and 24 outputs for a tray loaded with single-circuit microVAMs, and 24 inputs and 48 outputs for a tray loaded with dual circuit micro-VAMs.
Page 6
© 2016 CommScope. All Rights Reserved.
ADCP-90-459 • Issue 2 • June 2016
24293-A
SLIDE
LATCH
(2 PLACES)
RADIUS
LIMITER
(2 PLACES)
RADIUS
LIMITER
(2 PLACES)
SLIDING RADIUS
LIMITER (2 PLACES)
MOUNTING
BRACKET
(2 PLACES)
WAX LACING
TIE-DOWN POINTS
(EACH SIDE)
VELCRO LOOP
(PROVIDED)
TIE-DOWN POINTS
(EACH SIDE)
SLIDING
MICRO VAM
6-PACKS
KEYLOCK
(OPTIONAL)
18643-A
1 x N
SPLITTER
IN OUT
1 x N
SPLITTER
IN OUT
A1
A2
A
B1
B2
B
Figure 4. 64-Position Micro-VAM 2RU FMT
Figure 5. Sliding Micro-VAM With Dual-Circuit Schematic Label
1.2.4 48-Position Termination/Splice
Figure 6 shows the 48-Position Termination/Splice model. This panel has many of the same
features as the 72-position termination panel, plus a splice tray. Optical fibers brought into the
panel from an outside source are spliced in the splice tray to internal pigtails.
Page 7
© 2016 CommScope. All Rights Reserved.
ADCP-90-459 • Issue 2 • June 2016
The pigtails are routed within the drawer to be terminated on the front side of the sliding adapter
packs. Optical circuits are completed by connecting connectorized fibers to the rear side of the
adapter packs.
This model provides splicing and termination for 48 optical fibers. It holds two splice trays,
each with the capacity for 24 splices. It has eight adapter six packs providing 48 connectorized
terminations.
VELCRO LOOP
(PROVIDED)
TIE-DOWN POINTS
(EACH SIDE)
WAX LACING
TIE-DOWN POINTS
(EACH SIDE)
SLIDE
LATCH
(2 PLACES)
SPLICE
TRAY
RADIUS
KEYLOCK
(OPTIONAL)
LIMITERS
SLIDING
ADAPTER
6-PACKS
RADIUS
LIMITER
(2 PLACES)
SLIDING RADIUS
LIMITER (2 PLACES)
Figure 6. 48-Position Termination/Splice 2RU FMT
24294-A
MOUNTING
BRACKET
(2 PLACES)
Page 8
© 2016 CommScope. All Rights Reserved.
ADCP-90-459 • Issue 2 • June 2016
24296-A
SLIDE
LATCH
(2 PLACES)
RADIUS
LIMITERS
(2 PLACES)
SLIDING RADIUS
LIMITER (2 PLACES)
MOUNTING
BRACKET
(2 PLACES)
WAX LACING
TIE-DOWN POINTS
(EACH SIDE)
VELCRO LOOP
(PROVIDED)
TIE-DOWN POINTS
(EACH SIDE)
RADIUS LIMITERS FOR
STORAGE SPOOLS
1.2.5 Bulk Storage
Figure 7 shows the Bulkhead Storage model. This model stores 150 1.6mm patch cords (with
two meters stored per patch cord). Patch cords can enter from top or bottom, left or right side.
1.3 Attenuators
Attenuators (optional) decrease the optical power in a fiber by a specific or adjustable amount.
Once the desired level of attenuation is determined, fixed attenuators may be inserted in the
fiber optic line to deliver a precise output. In the 48-position termination/splice (FMT-GTL)
configuration and 72-position termination configuration (FMT-GN7), attenuators may be used
on either side of the sliding adapter packs. In the 72-position termination (FMT-GRT)
configuration, attenuators may only be used on the rear (back) side of sliding adapter packs.
2 DIMENSIONS AND SPECIFICATIONS
Figure 8 shows 2RU FMT dimensions for rack type, rack width, and recess options. Table 1 lists
specifications for the 2RU FMT.
Figure 7. Bulkhead Storage 2RU FMT
Page 9
© 2016 CommScope. All Rights Reserved.
Loading...