NEC 2400 ipx User Manual Page 459

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NDA-24296 CHAPTER 3
Page 433
Revision 1.0
PA-SDTA
SDH/SONET Digital Trunk
PA-SDTA
SDH/SONET Digital Trunk
1. General Function
The PA-SDTA circuit card provides a maximum of 28 interface (1.5 Mbps) used with the fiber optic cable.
This card has also the MUX function and is connected directly to the TSW card. This card is used with the
PA-SDTB card.
Figure 3-121 Location of PA-SDTA (SDT) Card in the System
F u s i o n
Node-A
Fiber Optic Cable
Fiber Optic Cable
For Dual Configuration
Connection Link (Data Link)
Connection Trunk (Speech Path)
Internal LAN
FCH
S
D
T
B
Node-B
Internal LAN
S
D
T
B
FCH
+
Fusion Link with FCCH
Fusion Link without FCCH
F u s i o n
Node-A
Internal LAN
Node-B
) SDT: SDH/SONET Digital Trunk
FCH: Fusion Call Control Handler
*
Fiber Optic Cable
Fiber Optic Cable
For Dual Configuration
Connection Trunk (Speech Path)
S
D
T
B
S
D
T
B
SDTA
SDTA
SDTA
SDTA
SDTA
SDTA
SDTA
SDTA
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