Verilink Red Zone Encryption (REMS) (880-502423-001) Produc Manuel d'utilisateur télécharger pdf (Page 35)

System operation

Red Zone Encryption Management System (REMS) User Manual

3-9

Or, to summarize, the DTE frame bit, carrying FBR code, is shifted

in time to correspond with the position of the BRC inserted bit.

The far-end FBR reframes on the offset framing bit (FBR code).

After the FBR code is aligned to the BRC frame bit position, the

FBR allows the DTE payload onto the network. As a result of the

offset and alignment, no payload bits are errored.

9. The far-end FBR moves the offset framing bit and restores it to its

original location.

DTE alignment

Once the FBRs are aligned and a 1.544 Mbps path is provided to the

DTE, the DTEs frame to each other.

23 192

012

192

offset removed

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 96 97

Verilink Red Zone 1
Encryption Management 1
System (REMS) User 1
Copyright Notice 2
Trademarks 2
FCC Requirements 2
Lithium Battery 3
Canadian 4
Requirements 4
Safety Precautions 4
Product Warranty 5
Customer Service 5
Verilink REMS User Manual 6
Table of Contents 7
Introduction 11
Overview 11
Features 12
Full T1 bandwidth 13
Other key 13
REMS system 14
CRC6 to the network 15
Network 16
Registers 17
Standards and complianc 18
AS2000 compatibility 19
2 System Overview 21
Dual-line and 22
Dual-line shelf 23
Multiline shelf 23
System Overview 24
Overview of the 25
REMS component 25
3 Theory of operation 27
Keystones of the 29
New Functionality 29
Theory of operation 30
System operation 31
Encryptor 32
FBR alignment 32
Alignment 33
I = BRC inserted bit 34
DTE alignment 35
Red Zone 37
Black Zone 37
4 FBR and BRC components of 41
Frame Bit Repositioner (FBR) 43
FBR NCC 2020 44
FBR DIU 2130 47
Functions of the 48
Components of 48
BRC NCC 2020 49
CDM 2249 49
5 Connecting REMS components 51
Connecting REMS components 52
Near-end of circuit 53
Connecting the far 53
Signal acronyms 55
Powering up REMS 56
Setting up external timing 58
Configuring and starting REMS 61
Using the 62
(overview) 62
Accessing the 63
NCC 2020 using 63
Procedure for 64
General AS2000 67
NCC 2020 LEDs 67
REMS master FBR 69
NCC 2020 front 69
Master FBR DIU 70
2130 front panel 70
Remote FBR DIU 70
Performance monitoring 71
Access Manager 2000 72
Troubleshooting 77
Basic troubleshooting 78
Sending framed 81
BRC connections 81
Rack mounting 84
Using heat baffles 85
Instructions for 85
Connecting the 87
Setting the shelf 89

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