FlexCore™ 4RU Universal Enclosure
Part Number(s) : FDFUE4BL, FDFUE4GY

INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

FDFUE4**

CONTENTS:

1 - Enclosure
8 - Pan-Ty Cable Ties
1 - Laser Warning Label

8 - #12-24 x 1/2” Screws
20 - Tak-Tys, 6” pcs
16 - #10-32 x 1/4” Screws

1 Fiber Caution Label
8 - M6 x 1.0 x 15mm Screws
1 - Sheet of C125X030FJJ Labels

WARNING: UN MATED CONNECTORS MAY EMIT INVISIBLE LASER RADIATION. DO NOT LOOKDIRECTLY INTO THE END OF THE CONNECTOR. DO NOT INSPECT WITH MAGNIFYING DEVICES.
MAINTAIN DUST CAPS ON UN MATED CONNECTORS.
CAUTION:
Fiber optic cable is sensitive to excessive pulling, bending, and crushing forces. Consult the manufacturer’s cablespecification sheet for the specific cable in use.
Follow TIA/EIA-568-A, 569, 606, and 607 installation guidelines where applicable.
Care should be taken when opening or closing a fully loaded drawer in order to protect the fiber components.

SHIPPING BRACKET REMOVALPHILLIPS HEAD
SCREW

Remove shipping bracket, byun-screwing the phillips headscrews on the top and bottomof the enclosure.

SHIPPING
BRACKET

PHILLIPS HEAD
SCREW

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INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

Preparation and Rack Mounting
Installation Option 1 below is the preferred method to install the enclosure to the rack, as it can be easily
assembled by one (1) person. For new/greenfield installations, it is preferred to mount the enclosures fromthe bottom of the rack upwards using Installation Option 1. For existing/brownfield installations, Installation
Option 1 must be used if there is NO RU space open above the desired enclosure location.
Installation Option 1: Pre-Install Mounting Brackets to Rack
Position the enclosure mounting brackets in
between the existing rack screws, as shown, suchthat the bottom horizontal flanges protrude into therack space and align with the RU tick marks.
Existing
RackScrews

Attach each of two enclosure brackets to the Flexcore ODF rack with two (2) #12-24 screws fromFLEX-KIT. Only hand tighten all four (4) enclosure
brackets screws at this time – do NOT completelytighten –to allow the enclosure to be aligned
properly in the next step.

Install mounting brackets inbetween existing rack screws
to align bottom of brackets
with RU tick marks.

5RU

TIP: For new installations, it is preferred to mountthe enclosures from the bottom of the rack upwards.
Locate the first set of enclosure brackets to leave
5RU of space between the bottom flange of eachbracket and bottom of the rack, as shown.

Carefully slide the enclosure onto the bottom horizontal flanges of the mounting brackets, making
sure the enclosure is slid fully into place.
Install and tighten eight (8) #10-32 x ¼” flat headscrews thru each mounting bracket to the enclosure(16 screws total).
Fully tighten the four (4) #12-24 screws that secure
the mounting brackets to the rack.

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© Panduit Corp. 2023

INSTALLATION INSTRUCTIONS

FS203

10th Enclosure to be installed

TIP: Up to ten (10) 4RU enclosures can be installed
in an ODF frame if cable must be routed behind theframe.
For new/greenfield installations, it is recommendedto:mount the enclosures from the bottom of therack upwards andleave a 5RU gap along the bottom of therack.
TIP: An 11th enclosure may be added in the open
5RU location at the bottom of the frame formaximum fiber density.

1st Enclosure to be installed

5RU gap for cable access

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Page 3 of 11© Panduit Corp. 2023

INSTALLATION INSTRUCTIONS

FS203

Installation Option 2: Pre-Install Mounting Brackets to EnclosureThis installation option is preferred if RU space is NOT open above the desired enclosure
location
Install (2) screws here
4RU

1RU
5RU

Locate two (2) #12-24 screws from FLEX-KIT to attach the enclosure mounting brackets to the Flexcore ODF rack.
Partially pre-install these two (2) screws, one oneach side of the rack, in the top hole location of thebottom-most 1RU of the 4RU rack position desired,as shown. (These two partially installed screws willassist in mounting the enclosure to the rack.)
Install enclosure mounting brackets onto the twopartially installed screws, such that enclosure aligns
with tick marks on rack as shown.

Install mounting brackets using (16) #10-32 x 1/4
Flat head screws

Place enclosure into rack from the front
and allow enclosure mounting bracket slots to reston the two partially installed screws previouslyinstalled.
The enclosure door needs to be open to access all
screw hole mounting locations. To open door, holdlatches down and swing door open.
Make sure to install four (4) #12-24 screws fromFLEX-KIT and tighten all screws to properly secure
the enclosure to the rack.
.

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INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

FlexCore™ Cassette Installation and Replacement (all cassettes sold separately)

Cassettes can be installed and removed from thefront of the enclosure as needed for replacement ormigration. Open door and slide tray out slowly until
it clicks into the second stop position, the cassettechange position. Disconnect patch cords from thefront of the cassette if replacing/removing cassette.
Lift cassette up from the front to disengage it fromthe tray and remove.
Cassettechangeposition

FlexCore™ Cassette Labeling

Clean tray surface with alcohol. Install labels onto
tray surface shown according to cassette purchased.

LC-to-Tethered Cassette Style

Fusion Splice Cassette without LC Adapters(labeling provided with Cassettes)

12345678910LC-MPO Cassette Style

1111 12234567891011 12

Fusion Splice Cassette with LC Adapters

2345678910

111 122345678

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Page 5 of 11

91011 12

INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

Install Patch Cords and Cabling

Incoming
Cable Side

Install
Tak-tyOutgoing
Patchcord
SideIn the configuration shown above, install patch cords into the front of the cassettes working from left toright, starting with the bottom most tray. It is recommended to populate each tray across before moving
to the next tray above. Route patch cord upward to corresponding spool. Repeat process until all patch
cabling is installed. Route incoming cables per FS206 and patchcords per FS204.
Install pieces of Tak-ty around all incoming cable in positions shown above close to tray cable manager.
Group together all incoming cables going to each cassette. Installing Tak-ty in this position will eliminate
any snagging of cables when cycling trays to access cassettes. If cabling must be routed horizontally,
instead of upward, it is recommended to install Tak-ty to bottom three trays of patch cords.
Cable Routing
Route the cables under the cable holding
features, as shown.
When installing fusion splice cassettes,
add Tak-Ty hook and loop to cables – thiskeeps cable exiting the cassette fromtouching the door.

Cable holding features
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INSTALLATION INSTRUCTIONS© Panduit Corp. 2023FS203LabelingLabeling options for the HD Flex Fiber Enclosures allow for identification to follow the EIA606-B labelingstandards. Panduit labels, used in conjunction with Panduit Easy-Mark Labeling Software, simplifies label
creation and allows for ease of editing and label replacement when necessary. Blank label part #C125X030FJJ (provided with enclosure) may be applied to the front of the door for enclosure identification- shown below is a view of this label installed in the upper-right hand corner of the enclosure.
C125X030FJJ

Apply the 12 sets of pre-printed part # C125X030FJJ labels provided to both sides of each tray. Cassetteport numbers may be printed onto these tray labels. Tray 1 is shown below as the lowermost tray and tray
12 is on the topmost tray. Optionally, tray 1 can be the topmost tray.
Tray 12Labels

Tray 1Labels

1212

11

11

10

10

998877

6

6

5

5

4

4

3

3

2

2

1

1

Blank part # C125X030FJJ labels provided may be applied to the inside of the front door - these labels
coincide with the tray and port labeling previously installed above. The labeling layout for the enclosure isshown below for typical application. Panduit label part #C061X030FJJ [1] can be used for single port
identification, Panduit label part # C125X030FJJ [2] (included with enclosure) can be placed in this area,Panduit label part # C252X030FJJ [3] for 4-port application, and Panduit label part # C379X030FJJ [4] for
6-port identification. Position the door labels across the spaces that correlate to the respective vertical tray
position.

43121211111010998877665544332211

12 (Included withenclosure)
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INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

Tray Rails for Modular Cassette Installation (Rails Sold Separately)
Without rails

Accepts all FlexCore™ Cassettes

1 RailA

FLEXC-RAIL02EN:
FlexCore™ 2 Black Rails Kit
in a 1-rail configuration

A

B
B

FHP9N-LA1X08
8 Simplex Output PortsFHP9N-LA1X16
16 Simplex Output PortsFHP9N-LA1X04
4 Simplex Output PortsC

Note:FHP9N-LA1X022 Simplex Output Ports
is also an option but isnot illustrated

CCC2 RailFLEXC-RAIL02EN:
FlexCore™ 2 Black Rails Kit
in a 2-rail configuration

BBB

4 RailC

FLEXC-RAIL04EN:
FlexCore™ 4 White Rails Kit
in a 4-rail configuration

IMPORTANT: HD Flex™ cassettes with front facing connectivity only, no rear facing connectors

Rail Removal and Installation
3RAIL REMOVAL STEPS (See Figure 1)
1. Depress latch upward from underneath.
2. Grip by finger rail grips.
3. Push rail to the left.
4. Lift rail up and away from enclosure.

Rail2

RAIL INSTALLATION STEPS (IF APPLICABLE)(See Figures 2 and 3)

4
1
Tray

Figure 1

Grip rail here (see #4 above)
AC
6D

7

B

5. Hold the bottom of the tray while installing the rail to the tray.
6. Engage triangular rail latch feature A into triangularopening B in tray.
7. While holding finger rail grips, install round rail feature C intoslot opening D.
8. Push rail to the right to engage latch.
9. Verify central rail latch feature E is engaged.
10. Apply applicable port I.D. labels as needed.
11. Push tray back into the enclosure to the home position.
8D65

Tray

Grip rail here(see #4 above)

CFigure 2

Tray

Latch
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Page 8 of 11

EFigure 3

© Panduit Corp. 2023

INSTALLATION INSTRUCTIONS

FS203

Door Lock Installation
The optional locking kit (see Panduit Part Numbers below) is sold separately and includes two locks andfour keys. Multiple styles of locking kits can be ordered to key enclosures differently from one another.

Remove the plug in the door to exposed the lockhole. The lock can be installed on either or bothsides of the door.

Rotate the key to align the flats of the cylinder
with the tab of the lock body. Verify that the key
can be removed. If the key cannot be removed inthis orientation, rotate the key 180 degrees andverify that the key can be removed.

Tab

Flats

On the rear door surface, install the lock in thelock hole, with the tab of the lock body in theLocknut
bottom position, as shown. Secure the lock withwith the locknut.

Tab
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Page 9 of 11INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

Locked Position
Install the pawl onto the flats of the cylinder andsecure with the screw and washer.
Note: The key can only be removed in the lockedposition.

Pawl
Screw &Washer
Unlocked Position

Optional Locking Kit Panduit Part Numbers:
FDFELS - Keyed alike, Unmarked Keys
FDFELS2 - Keyed alike, Marked Keys Option ID 2
FDFELS3 - Keyed alike, Marked Keys Option ID 3
FDFELS4 - Keyed alike, Marked Keys Option ID 4
Note: These different styles of locks have different(non-compatible) keys. For example, keys fromFDFELS2 will work on locks from FDFELS2, not onlocks from FDFELS4.

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Page 10 of 11

INSTALLATION INSTRUCTIONS© Panduit Corp. 2023

FS203

FlexCore™ System Installation Instructions
Installation
Instruction
NumberPanduitPart
Number

FS187
FS190
FS191
FS192
FS193
FS194
FS198
FS199
FS200
FS201
FS203
FS204
FS205
FS206

FOBKF**(Y/A)M1
FDFF45**FDFVCM1545**
FDFVCM3045**
FDUFD**45*X**
FDFEP45**
FDUSP
FDUSP6
FDS**-24-***
FDSN-24
FDFUE4**N/A
FDFRC45**
N/A

Description

Fiber Breakout Kit, Flat Ribbon Furcation Tube
FlexCore™ Optical Distribution Frame
FlexCore™ 150mm Vertical Cable Manager
FlexCore™ 300mm Vertical Cable Manager
FlexCore™ Single Hinge Front Doors
FlexCore™ End Panels
FlexCore™ Fiber Spool
FlexCore™ Fiber Spool 6-pack Color Coordinated Kit
FlexCore™ Fusion Splice Cassette - Cable to LC Adapter
FlexCore™ Fusion Splice Cassette - Cable to Cable
FlexCore™ 4RU Universal Enclosure
FlexCore™ Front Access Optical Distribution Frame Patchcord Routing Guide
FlexCore™ Frame Rear Panel
FlexCore™ Front Access Ingress/Egress Cabling GuideFor Instructions in Local Languages
and Technical Support:
www.panduit.com/resources/install_maintain.asp

E-mail:techsupport@panduit.com
www.panduit.com
Page 11 of 11

Phone:
866-405-6654

Rev. 05
01/2023