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2.
FNC SYSTEM
The ADTRAN FNC System uses the Total Access 3000 as the backbone for the local loop delivery
platform. In addition to this, a number of additional components have been integrated to provide a turnkey
solution. Detailed documentation for each of these components can be found on the enclosed CD.
Table 2
lists the Total Access 3000 population of common and access modules and accessories.
Total Access 3000 Shelf A, B, and C Components and Quantity
A (Host)
SCU
OC-3 Fiber Mux
HxTU-C
Quad BNC I/O Jack
Hx = HDSL, HDSL2, or HDSL4 access module.
*Redundant capability for reliability.
Total Access 3000 Arrangement
The ADTRAN Total Access FNC-Sport consists of a Marconi MESA Sport NT on Riser cabinet that
houses three Total Access 3000 chassis designated A, B, and C.
The Host Total Access 3000, Shelf A, is fed with an OC-3. Client shelves B and C are individually
subtended over BNC coax via STS-1 from Host A. Each Total Access 3000 multiplexes 28 T1 services
(HDSL, HDSL2, HDSL4, or legacy T1) for a total of 84 circuits. The Client shelves payload to the Host is
STS-1. The Host multiplexes the STS-1 payloads into an OC-3 payload.
The Total Access 3000 units A, B, and C feed into the protector panel, which in turn feeds the cross
connect panel. The management DS1 circuit in a customer designated slot in shelf A is used for provision-
ing and maintenance information. See
In loop 1 and loop 2 of Figure 4, Pair 1 is transmit and Pair 2 is receive.
64192MS3KQL1-1A
Table 2. Total Access 3000 Components
B (Client)
1
SCU
2*
STS-1 Mux
28
HxTU-C
1
Dual BNC I/O Jack
Figure 4
for a block diagram of the Total Access 3000 FNC system.
Fiber Node Cabinet System Manual
C (Client)
1
SCU
2*
STS-1 Mux
28
HxTU-C
1
Dual BNC I/O Jack
1
2*
28
1
7
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