Carrier Access Access Navigator - Manual (Page 654)

B-2 August 2003 Access Navigator - Release 1.8
FDL Interface
Overview
Overview
The Facility Data Link (FDL) interface is a management channel in the T1 Extended Superframe Format
(ESF) described in ANSI standard T1.403. The Access Navigator uses this 4Kbps channel to communicate
with the Adit 600 TDM and Access Bank II families of T1 voice and data access products.
Carrier Access provides provisioning and monitoring of remote Adit 600 and Access Bank II terminals
using a Carrier Access FDL (CA FDL) protocol to send commands over the FDL channel.
Figure B-1. FDL Interface
T1
Access
Bank II
Access
Navigator
Network
Operations
Center
Access
Navigator
Element
Manager
Voice
Switch
FDL
On-Net
Location
Customer
Wiring Closet
Local
Management
CLI/RS-232
CLI/Telnet
SNMP
Data
Switch
TCP/IP
Network
Customer
Premises
Key System
Fax
V.35, T1
or DSL
Router
Ethernet
PBX
Stations
Voice
Lines
ACCESS BANK II
Tip & Ring
-48Vdc Return Ground
T1 Span 1
T1 Test 2
T1 Test 1
T1 Span 2
V. 35
DCE
V. 35
St atus
RS 232
Data
Adit 600
Key System
Fax
Router Ethernet
PBX
Stations
Modem
FXS/FXO
10/100BaseT
ADI T 600
DDS
ISDN BRI
T1 Drop
V.35
RS232
VoIP
T1 Drop