very high density modular fibre optic drawers, to be

Technical data sheet: S000099681EN/02 Updated: 13/03/2019 Created: 22/07/2017

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128, av. du Maréchal-de-Lattre-de-Tassigny - 87045 LIMOGES CedexTel: +33(0)5 5 55 06 87 87 Fax: +33(0)5 55 06 88 88www.legrand.com

Cat. No(s): 0 321 50/51/52/53/54/55/56/57/58/900 321 91/92/93/94/95/96/97/98/99 - Made-to-order

Very high density modular fibre optic drawers, to be equipped with cassettes

Very high density modular fibre optic drawers, to be equipped with cassettes. Fixed modular chassis for holding very high density cassettes.

1. USE

Cat. Nos. A B C

0 321 50/90 483 44 598

0 321 51 483 44 260

0 321 52/91 483 88 597

0 321 53/92 483 176 599

0 321 54 / 0 321 55

0 321 93 / 0 321 94 0 321 95 / 0 321 96 0 321 97 / 0 321 98 / 0 321 99

0 321 58

0 321 52 / 0 321 91 0 321 53 / 0 321 92

0 321 51

0 321 56 / 0 321 57

1

45

89

12

23

4

1

x 4x 4

x 4

0 321 50 / 0 321 90

x 2

x 8 x 4

1

43

2

85

41

2. DRAWER DIMENSIONS (mm)

For cassettes and adaptors with 12 fibres

0 321 51 1U maximum capacity (holds up to 12 cassettes):144 LC connectors

Fibre optic drawers with cord management at front and back









A

B

C

B

A

C

Cat. Nos. 0 321 50/90

Cat. No. 0 321 51

Clip directly into the fibre optic drawers: 0 321 50/51/52/53

0 321 54

OM4 multimode cassettesfor 50/125 μm multimode installation, OM4 typeMPO cassette (compatible with MTP)12 OM4 LC strands, polarity A/C

0 321 55

OS2 cassettesfor 9/125 μm singlemode installation, OS2 typeMPO cassette (compatible with MTP)12 OS2 LC strands, polarity A/C

Made-to-order OM4 or OS2 cassette in polarity B

Clip directly into the fibre optic drawers: 0 321 90/91/92

0 321 93

OM4 multimode cassettesfor 50/125 μm multimode installation, OM4 typeMPO cassette (compatible with MTP)8 OM4 LC strands, universal polarity

0 321 94

OS2 cassettesfor 9/125 μm singlemode installation, OS2 typeMPO cassette (compatible with MTP)8 OS2 LC strands, universal polarity

3. VERY HIGH DENSITY CASSETTES FOR FIBRE OPTIC DRAWER

Fibre optic drawers with cord management at front

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7. CONNECTING ADAPTORS

2

0 324 41

1

23

4

1

2

23

4

1

3

23

4

1

4

23

4

1

5

23

4

1

2

6. CONNECTING CASSETTES4. ADAPTORS FOR FIBRE OPTIC DRAWER

Clip directly into the fibre optic drawers: 0 321 50/51/52/53

0 321 56 4 MPO adaptor (compatible with MTP) key UP/key DOWN multimode

0 321 57 4 MPO adaptor (compatible with MTP) key UP/key DOWN singlemode

0 321 58 12 LC multimode adaptor

Clip directly into the fibre optic drawers: 0 321 90/91/92



0 321 97 8 LC OM4 adaptor

0 321 98 8 LC OS2 adaptor

0 321 99 8 LC APC OS2 adaptor

5. CASSETTE AND ADAPTOR DIMENSIONS (mm)

Cat. Nos. A B C

Cassettes

0 321 54/55 97 12 129

0 321 93/94 68 12 129

Adaptors

0 321 56/57/58 97 11 121

0 321 95/9668 12 121

0 321 97/98/99

B

A

C

A

C

B

Cat. Nos. 0 321 54/55

Cat. Nos. 0 321 56/57

B

C

A

Cat. Nos. 0 321 95/96

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8.4 Adaptor characteristics:Clip directly into the fibre optic drawers; adaptors slide in and out of a chassis. Can be fitted and removed from the front and rear.

8.5 Standards and approvals:ANSI/TIA-568-C.3: Optical Fiber Cabling Components StandardTIA-604-10: Fiber Optic Intermateability Standard, LCTIA-604-5: Fiber Optic Intermateability Standard, MTP/MPORoHS

8.6 Climate characteristicsStorage and usage temperature: - 10°C to + 60°C

8. TECHNICAL CHARACTERISTICS (continued)

Panels

0 321 50 UHD drawer - 1U - to be equipped with cassette 11.9 kg

0 321 51 UHD drawer to be equipped with cassette, without rear cord management

7.7 kg



0 321 90 UHD drawer - 1U - to be equipped with cassette with 8 fibres

10.5 kg


13 kg


19.6 kg

Cassettes

0 321 54 12 OM4 LC MPO cassette with UHD panel80 g

0 321 55 12 OS2 LC MPO cassette with UHD panel

0 321 93 8 OM4 LC MPO cassette with UHD panel70 g

0 321 94 8 OS2 LC MPO cassette with UHD panel

Adaptors


70 g0 321 57 4 MPO adaptor (compatible with MTP) key UP/key DOWN multimode

0 321 58 12 LC multimode adaptor


50 g


0 321 97 8 LC OM4 adaptor

0 321 98 8 LC OS2 adaptor

0 321 99 8 LC APC OS2 adaptor

8. TECHNICAL CHARACTERISTICS

8.1 Weight:

8.2 Fibre optic drawer characteristics:They can take very high density cassettes, MTP and LC adaptors.Maximum capacity: 576 LC connectorsMaterial: sheet steelColour: black

8.3 Cassette characteristics:Clip directly into the fibre optic drawers; cassettes slide in and out of a chassis.Cassettes can be fitted and removed from the front and rear.Cassettes equipped with male MTP connectorsInsertion Loss and Return Loss value for each fibre:

IL max (dB) RL min (dB)

Singlemode 1.05 (1) 52.0 (3)

Multimode 0.5 (2) 19.0 (3)

(1) tested in accordance with TIA-526-7 and TIA-568-C.3(2) tested in accordance with TIA-526-14-A and TIA-568-C.3(3) tested in accordance with TIA-455-107 and TIA-568-C.3

Cassettes with polarity B available made-to-order in multimode and singlemode.

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9. POLARITY

Method A

� 1

2 �

12

A

AB

B

A

AB

B

Method A / C

123

67

9

45

8

101112

123

67

9

45

8

101112

UP

PULL

PUSH

PULL

PUSH

Key UP Key DOWN

Trunk polarity A

A / C A / C

0 326 86/87/88/89 - 0 326 92/95/96/97/98/99

�A

B

� �

AB

Key UP > Key DOWNType ”A” adaptor con�guration

POS.1

POS.1

POS.12

POS.12

MALE W/PINS (cassette)

KEY - UP TO KEY - DOWN

FEMALE W/O PINS

(trunk)D UPAKey DOWN Key UP

Key

1 12

AB

Method C

Trunk polarity C A

AB

B

A

AB

B

A / C A / C

123

67

9

45

8

101112

123

67

9

45

8

101112

UP

PULL

PUSH

PULL

PUSH

Key UP Key DOWN

Method A/C : 0 321 54 / 0321 55

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9. POLARITY

UPBUP

POS.1

POS.12

FEMALE W/O PINS

(trunk)

Method BKey UP > Key UPType ”B” adaptor con�guration

POS.12

POS.1


KEY - UP TO KEY - UP

Key UP Key UP

Key

1 12

A

AB

B A

AB

B

B1 B2

Trunk polarity B123

67

9

45

8

101112

121110

76

4

98

5

321

UP UP

PULL

PUSH

PULL

PUSH

Key UP Key UP

straight crossover

Standard SM MTP female connectorfrom trunk (down-angled)

SM MTP male connectorinside the casse�e (up-angled)

Key-up / Key-up adaptor

Method B : "Made-to-order" singlemode/multimode

For singlemode cassettes with polarity B (key-up/key-up feedthrough), the male MTP connector for the cassette is up-angled in accordance with IEC 61754-1-12 and therefore only compatible with standard polarity B female MTP (or MPO) trunks (down-angled). Polarity B trunks available made-to-order.

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9. POLARITY

Universal polarity : 0321 93 / 0321 94

A

AB

B

A

AB

B

Universal polarity

123

67

9

45

8

101112 1

23

67

9

45

8

101112

UP

PULL

PUSH

PULL

PUSH

Key UP

Trunk polarity B

Key UP > Key DOWNType ”A” adapter con�guration

POS.1

POS.1

POS.12

POS.12


KEY - UP TO KEY - DOWN

FEMALE W/O PINS

(trunk)D UPAKey DOWN Key UP

Key

1 12

Key UP

UP

very high density modular fibre optic drawers, to be

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