Tektronix Demarcation Cabinet Instruction Manual Instruction Manual

Instruction Manual

Demarcation Cabinet
J Series Codec

071-0227-00

First Printing: April 1998

Telephone Numbers

North America

[phone]
Fax: [phone]

Elsewhere

Distributor or sales office from
which equipment was purchased.

Web Addresses

Grass Valley Email Support

[e-mail]

Grass Valley W eb Page

http://www.tek.com/Grass_V alle y

Tektr onix Web Site

http://www.tek.com

Customer Support

Tektronix Grass Valley Products is committed to providing the most
responsive and professional product support available. We have a fully
staffed, highly trained support team ready to respond to anything from a
simple question to an emergency repair. Support is available via telephone
or email. For new and updated customer support documents, as well as
new product information, check the Tektronix web site and Grass Valley’s
web page.

Postal Addresses

Mail

Tektronix Grass Valley Products
P.O. Box 1114
Grass Valley, CA 95945

Shipping

Tektronix Grass Valley Products
400 Providence Mine Rd.,
Nevada City, CA 95959

Copyright © Tektronix, Inc. All rights reserved. Printed in U.S.A.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Informa­tion in this publication supersedes that in all previously published material. Specifications
and price change privileges reserved. TEKTRONIX, TEK, Grass Valley Group, Borderline,
E-MEM, TEN-X, Wavelink, and are registered trademarks, and Air Link, Auto Match,
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The information in this manual is furnished for informational use only, is subject to change
without notice, and should not be construed as a commitment by Tektronix, Inc. Tektronix
assumes no responsibility or liability for any errors or inaccuracies that may appear in this
publication.

Tektronix, Inc., Video and Networking Division, P.O. Box 1114 Grass Valley, California
95945 U.S.A.

Contents

Demarcation Cabinet for J-Series Codec

Index

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interface Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Moving Interface Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

To Move an Interface Panel: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interface Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Harness Cabling to the Interface Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1
2

2
3
3
3
6

6
11
12
12

iii

Contents

List of Illustrations

Figure 1. J-Series Codec Demarcation Right-Hinged Cabinet . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2. J-Series Codec Demarcation Cabinet — Exploded View . . . . . . . . . . . . . . . . . . . .

Figure 3. J-Series Codec/Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 4. Interface Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 5. Data Interface Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6. J-Series Codec Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Tables

Table 1. Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2. J-Series Codec/Cable Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

5

8

9
10
12

2

7

iv

Introduction

Demarcation Cabinet for J-Series Codec

The J-Series video codec is a primary component of Grass Valley’s DS-3
network video transportation products. It provides an economical,
signal-multiplexing capability which can combine high-quality video,
audio, and data, and format it for transmission over standard DS-3
telecommunication links. The J-Series codec interfaces with DS-3, T1,
RS-232, and RS-485.

The J-Series codec is an NTSC-compatible, composite video codec. A
proprietary implementation of the JPEG compression scheme is used to
deliver near-broadcast quality, full motion video at 30 frames per second.

The J-Series Codec Demarcation Cabinet is a metal interface box designed
to house multiple J-Series codecs. The cabinet protects the equipment
inside and prevents unauthorized access to the codec(s).

This document covers the following:

Physical Description on page 2

■

■

Installation Instructions on page 11
Functional Diagram on page 12

■

■

Service Information on page 12

This document is an addendum to the J-Series codec Installation and Service
and Operation manuals. Please refer to the standard manuals for all
operations and service information for the codec.

1

Section —Demarcation Cabinet for J-Series Codec

Physical Description

The J-Series Demarcation Cabinet (Demarcation Cabinet) is a cabinet that is
mounted on a wall. The cabinet protects the equipment inside and prevents
access to the codec(s) by unauthorized personnel. It can hold one 6 RU
codec (J10) or up to three 2 RU codecs (J3).

The codec units are installed onto standard rack-mounting holes on the
Demarcation Cabinet door‘s swing- frame assembly. A wire cable harness
from an Interface Panel connects to the backplane of the codec(s) that
mounts on the inside of the cabinet. The Interface Panel replaces any one of
the four cover plates on the sides of the cabinet. See Figure 1.

NOTE:

Hardware Specifications

The physical specifications of the J-Series Demarcation Cabinet are
presented in Table 1.

Each Interface Panel has enough connections for one slot.

Table 1. Physical Specifications

Parameter Value

Height 2.0 feet (68.9 cm) 12 RU total

Width 2.25 feet (68.58 cm)

Depth 1.5 feet (45.7 cm)

Weight 107 lbs. (48 kg)

Fan Assemblies

†1

Height 2.0 inches (5.0 cm)

Width 19.5 inches (49.5 cm)

Depth 5.5 inches (13.9 cm)

Weight 5.8 lbs. (2.6 kg)

†1. Although the height of the cabinet allows for 12 RU, the cabi-

net is limited to one 6 RU codec or three 2 RU codecs.

2

Interface Design

Physical Description

The Demarcation Cabinet (see Figure 1 for a regular view or Figure 2 for an
exploded view) is designed to suit a variety of needs and locations. The
entire cabinet can also be turned either up or down so that the front door
hinges from the right or left side.

You can mount the Interface Panel on the top or bottom of either the right
or left side (four cutouts with coverplates are available to choose from).

Three smaller knockout panels on the top and on the bottom of the cabinet
can be used for heat ventilation. Fans and finger guards are installed in the
top knockouts and only finger guards are installed in the bottom ones. Both
the top and bottom knockouts must be removed for the ventilation to work
properly.

CA UTION

Finger guards MUST be installed in all knockouts removed for ventilation.

Four cutouts with coverplates are located on the sides of the Demarcation
Cabinet, two on the right side and two on the left side of the cabinet, one
above the other. These cutouts are for mounting the Interface Panel.
Connections on the Interface Panel correspond to different input
connectors on the J-Series codec. See Figure 4 on page 9 for a drawing of
the Interface Panel.

NOTE:

Moving Interface Panels

The cabinet can be configured as left-hinged or right-hinged. Figure 1
shows a right-hinged one. The Interface Panel is mounted one of the upper
coverplate opening on the side with the hinge for a single 2 RU codec. For
multiple 2 RU codecs, additional Interface Panels are mounted below the
first one and then on the other side of the cabinet. For the 6 RU codec, from
one to four openings are filled with Interface Panels.

To Move an Interface Panel:

No alarm connections are provided on the Interface Panel.

1. Remove the coverplate from the new location on the side of the
Demarcation Cabinet.

2. Remove the Interface Panel from the old location.

3

Section —Demarcation Cabinet for J-Series Codec

3. Mount the Interface Panel in the new location(from the inside of the
Demarcation Cabinet).

4. Place the coverplate over the opening of the old location.

Right-Hinged Box

Knockouts
for cooling

Figure 1. J-Series Codec Demarcation Right-Hinged Cabinet

Typical
Interface
Location
(mounted
inside)

Cover
Plate

4

Physical Description

Swing-Frame Assembly

Plexiglass Door

Figure 2. J-Series Codec Demarcation Cabinet — Exploded View

5

Section —Demarcation Cabinet for J-Series Codec

Interface Panels

Each Interface Panel (panel) can provide the connections for one codec
MAD module and its submodules.

Each Interface Panel has the following external connections (see Figure 4):

Video Connectors:

■

J10, J11, J12, and J13

RS-232 Connectors:

■

J00 and J01

■

T1 Connectors:
J16 and J17

Audio Connectors:

■

J02, J03, J04, J05, J06, J07, J08, and J09

Each Interface Panel has the following internal connections :

■

Video Connectors:
J10, J11, J12, and J13

■

RS-232 Connectors:
J00 and J01

■

T1 Connectors:
J18

■

Audio Connectors:
J14 and J15

The front and the back of the panel is labelled with the J-numbers for each
connector. Since the interface panel can be used for any slot in the codec
backplane, the J numbers do

Harness Cabling to the Interface Panel

not

correspond to slot numbers.

Table 2 is a mapping of J-Series codec backplane to the internal interface

panel. The table shows codec slot zero connected to the interface panel. If a
second codec slot is used, the same relationships are used. Figure 3 shows
the cabling relationship between the J-Series codec backplane to the
internal interface panel.

6

Physical Description

Table 2. J-Series Codec/Internal Cable Interface

Cable

Reference

Designation

J00 J00 J10 J20 Data RS-232
J01 J01 J11 J21 Data RS-232
J10 J07 J17 J27 Video
J11 J08 J18 J28 Video
J12 J09 J19 J29 Video
J13 J010 J110 J210 Video
J14 J06 J16 J26 Audio
J15 J05 J15 J25 Audio
J18 J04 J14 J24 Data T1
J20 Reserved for future use Option

#1 #2 #3

Slot

Type

7

Section —Demarcation Cabinet for J-Series Codec

PC BRD ASSY;

671-4520-00

1
3
2

J15

1
2
3

1
3
2

1
3
2

4
5
6

7
8
9

CLR
BLK
RED

CLR
BLK
WHT

CLR
BLK
BLU

10

1
3

11
12

2

1
3
2

J14

1
2

CLR
BLK
GRN

CLR
BLK
GRN

3

1
3
2

1
3
2

4
5
6

7
8
9

CLR
BLK
BLU

CLR

BLK

WHT

10

1
3

11
12

2

CLR
BLK
RED

AN

LEFT

AN

RIGHT

BN

LEFT

BN

RIGHT

AS

LEFT

AS

RIGHT

BS

LEFT

BS

RIGHT

J06

G

­+

J02

G

­+

J07

G

­+

J03

G

­+

J08

G

­+

J04

G

­+

J09

G

­+

J05

G

­+

J15

J14

INTERFACE PANEL

J15

J14

J05

J06

CLR

GRN

BLK

BLK

GRN

CLR

111210

213

CLR

BLU

4

879

BLK

BLK

5

BLU

CLR

6

6

CLR

WHT

5

7

BLK

BLK

8

CLR

4

WHT

CLR

BLK

RED

2

3

1

J-SERIES

9

11

10

CLR

12

BLK

RED

BACKPLANE

Figure 3. J-Series Codec/Audio Connections

8

VIDEO

AN BN AS BS

J13J12J11J10

LEFT

AN

BN

AS BS

Physical Description

1

2

3

AN BN

1

2

3

J02 J03 J05J04

DATA

J00 J01

RS232 RS232

AB

1

2

3

RIGHT

1

2

3

J16 J17

T1

A

2

3

AS

2

3

ETHERNET

1

1

J19

1

2

3

J09J08J07J06

BS

1

2

3

T1

B

Figure 4. Interface Panel

9

Section —Demarcation Cabinet for J-Series Codec

If more than the two T1 connections are needed, order additional data
panels as shown in Figure 5.

DATA

J00 J01

J16 J17

RS232

A

DATA

J00 J01

RS232

A

DATA

J00 J01

RS232

A

RS232

B

RS232

B

RS232

B

T1

A

T1

A

T1

A

T1

B

J16 J17

T1

B

J16 J17

T1

B

10

Figure 5. Data Interface Panel

Installation Instructions

Use the following steps when installing the J-Series codec Demarcation
Cabinet:

1. Add any additional cutouts or holes that may be needed to bring in
fiber or coax wiring and power cords.

2. Mount the Demarcation Cabinet on the wall. Mounting holes are at 16,
20, and 24 inch spacings.

3. Open the outer, plexiglass door (see Figure 2) and mount the codec
frame. Standard mounting holes are located on the right and left sides
of the enclosure.

4. Once the codec is mounted, loosen the two latch screws (one upper and
one lower) which secure the swing-frame door assembly.

Installation Instructions

5. Open the swing-frame door assembly and connect the unconnected
end of the wire cable harness from the Interface Panel to the backplane
of the codec. Connect only the cables corresponding to the customer’s

existing wiring.

NOTE:

a second interface panel must be ordered.

6. Repeat Steps 1 through 5 for each 2 RU codec being installed into the

7. Connect the AC power.

8. Each codec can be monitored through the plexiglass door to confirm

Refer to Table 2 for mapping of J-numbers. If a second J-Series slot is used,

Demarcation Cabinet.

that the unit is operational.

11

Section —Demarcation Cabinet for J-Series Codec

Functional Diagram

Please refer to your J-Series Installation and Service manual for all operations
and maintenance information. Refer to Figure 6 for the functional block
diagram of the J-Series codec Demarcation Cabinet and J-Series codec.

DS-3 on Coax or Fiber

A & B Balanced

Audio In/Out

DS-I Data In/Out

Video In/Out

RS-232

Site 1 Site 2

Figure 6. J-Series Codec Interface Block Diagram

Service Information

Replacement parts can be ordered. Use the information located on the back of the
Title page to contact Customer Service. They will provide the current part
numbers, part availability, and ordering directions.

Customer Service can also assist you in obtaining any service or repair
information.

If possible, have the following information on hand when you call:

CODEC CODEC

A & B Balanced
Audio In/Out

DS-I Data In/Ou
Video In/Out

RS-232

12

Your sales order number

■

Error messages caused by the problem

■

Product manuals for easy reference

■

NOTE:

Keep your system running when you contact Customer Service. This

makes it easier for our service representative to help you solve problems.

Index

A - C

Connectors

Audio
RS-232
T1

Video
Coverplate
Cutouts

6

6

6

6

3

3

D

DS-3

1

E

External connections

6

F - H

Fans

3

Finger guards
Functional block diagram

3

12

I

Illustration

Data Interface Panel
Interface Panel
J-Series Codec Demarcation Cabinet —

Exploded View

J-Series Codec Demarcation Right-Hinged

Cabinet
J-Series Codec Interface Block Diagram
J-Series Codec/Audio Connections

Internal connections

4

10

9

5

6

S

Specifications 2

T - Z

T1 1
Table

J-Series Codec/Internal Cable Interface 7
Physical Specifications 2

12

8

J - K

JPEG

1

L - Q

Left-hinged

3

R

Replacement parts
Right-hinged
RS-232
RS-485 1

3

1

12

Index-1

Index

Index-2