A-2
August 2003
Access Navigator - Release 1.8
EOC Interface
Overview
Overview
The Access Navigator GR-303 complies with Telcordia® (Bellcore) standard GR-303. This specification
describes a Digital Loop Carrier (DLC) system that operates on T1 circuits. GR-303 management uses an
Embedded Operations Channel (EOC) enabling the local switch to provision GR-303 resources in the
Access Navigator. The local switch uses the Timeslot Management Channel (TMC), a dedicated DS0
channel, to set up cross-connects in the Access Navigator on a per-call basis, providing call concentration
and more efficient use of switch and facility resources.
Figure A-1. GR-303 Architecture with the Access Navigator
In the GR-303 network architecture (see Figure 1), the local switch is called the Integrated Digital Terminal
(IDT). The IDT connects to an intelligent Remote Digital Terminal (RDT), such as the Access Navigator.
Between the IDT and RDT, management and voice traffic flow over an Interface Group (IG) comprising
two or more T1s (DS1s). Dedicated DS0s in the IG carry the EOC and TMC. The remaining DS0s carry
voice frequency calls assigned by the switch.
Services defined on the EOC interface allow remote management of GR-303 resources in the Access
Navigator. GR-303 services are modeled by managed objects, which represent physical resources or support
Access
Navigator
GR-303
Voice &
ISDN BRI
Data
Switch
DS1s
GR-303
Interface
Group
Local
Digital
Switch
Integrated Digital
Terminal (IDT)
Remote Digital
Terminal (RDT)
Drop
DS1s
Key System
Fax
V.35, T1
or DSL
Router
Ethernet
PBX
Stations
Access Bank
Voice
and
Data
Voice
Lines
ACCE SS BANK II
Tip & Ring
-48Vdc
Return
Gr ound
T1
S pan 1
T1 Tes t 2
T1 Test 1
T1
S pan 2
V.35
DCE
V.35
Statu s
RS23 2
Data
Adit 600
Voice
and
Data
ADIT 600
Customer Premises
P-Phones
P-Phone
(EBS)
DDS
ISDN BRI
T1 Drop
V.35
Router Ethernet
PBX
Stations
RS232
VoIP
T1 Drop
Modem
10/100BaseT
Key System
Fax
FXS/FXO
Содержание Access Navigator
Страница 1: ...Access Navigator USER MANUAL Part Number 770 0079 AP Product Release 1 8 August 2003 ...
Страница 82: ...4 18 August 2003 Access Navigator Release 1 8 Access Navigator GR 303 Host with P Phone Ordering Information ...
Страница 104: ...5 22 August 2003 Access Navigator Release 1 8 Physical Installation Attach Access Navigator to Plywood ...
Страница 170: ...6 66 August 2003 Access Navigator Release 1 8 Electrical Installation Exit Management Session ...
Страница 182: ...7 12 August 2003 Access Navigator Release 1 8 Start Management Session NetworkValet EMS and Valet Management ...
Страница 214: ...9 20 August 2003 Access Navigator Release 1 8 Provision DCS Service Test DS1 and DS0 Circuits ...
Страница 296: ...12 18 August 2003 Access Navigator Release 1 8 Provision Remote Adit 600 via FDL Test DS1 and DS0 Circuits ...
Страница 320: ...13 24 August 2003 Access Navigator Release 1 8 Provision Remote Adit 600 via IP DS0 Test DS1 and DS0 Circuits ...
Страница 342: ...14 22 August 2003 Access Navigator Release 1 8 Alarm Clearing Ethernet Link Status LED ...
Страница 434: ...16 36 August 2003 Access Navigator Release 1 8 Maintenance Procedures Install SIMM on Controller Card ...
Страница 456: ...17 22 August 2003 Access Navigator Release 1 8 Update Controller Card Software Download Software ...
Страница 634: ...18 178 August 2003 Access Navigator Release 1 8 CLI Language Reference CLI Command List ...
Страница 658: ...B 6 August 2003 Access Navigator Release 1 8 FDL Interface Access Bank II Capabilities ...
Страница 668: ...C 10 August 2003 Access Navigator Release 1 8 SNMP Interface SNMP Trap Reports ...
Страница 682: ...GlossaryGlossaryGlossaryGlossary 14 August 2003 Access Navigator Release 1 8 Glossary ...
Страница 704: ...Index 1 22 August 2003 Access Navigator Release 1 8 Index ...