ADTRAN Network Card Nx56 64 Bonding User Manual

Nx56/64BONDING  
ATLAS 800 Series Module  
The ADTRAN® Nx56/64 BONDING Module  
com bines m ultiple ISDN B-channels using  
the BONDING Mode 1 protocol to support  
high bandwidth ISDN applications such as  
dial backup of frame relay or dedicated  
circuits. The inverse multiplexing (IMUX)  
capacity of the module is 64 DSOs or ISDN  
B-channels (4.096 Mbps total), which can be  
allocated according to the users needs. For  
example, one bonding session in an ATLAS™  
system could be configured to bond eight  
B-channels as a dial backup link to a remote  
512 kbps device such as the ISU 512.  
the Quad Nx56/ 64 module. This partitioning  
Product Features  
allows the Nx56/ 64 BONDING Module to  
serve as a resource for multiple user devices.  
I Designed for disaster  
recovery applications  
When combined with the ATLAS 800PLUS/810PLUS  
and frame relay software, the Nx56/ 64 BONDING  
module can offer high speed dial backup  
around the network in frame relay applica-  
tions. This same capability can be applied to  
providing dial backup of failed dedicated  
circuits or other network connections. Other  
applications that may call for the Nx56/ 64  
BONDING Module include image transfer  
and video conferencing.  
I BONDs multiple 56/64 kbps  
channels  
I Implements BONDING  
Mode 1  
I Capable of 32-128 kbps  
BONDING sessions  
I Number of BONDED  
channels is user config-  
urable from 2 to 32  
I Can be used to restore  
Frame Relay or dedicated  
FT1/T1 links  
Similarly, the total bonding capacity of the  
module might be configured to implement  
four sessions at 512 kbps, two at 384 kbps,  
and ten at 128 kbps. The table on reverse  
shows how many sessions can be supported  
at typical BONDING rates.  
The Nx56/ 64 BONDING Module is  
compatible with the ISDN Dial Backup  
options of ADTRAN's Express 5000 series  
products as well as the IQ family of frame  
monitoring CSU/ DSUs. It is also compatible  
with ISDN Access products such as ADTRANs  
ISU 128® and ISU 512, as well as the ISDN  
dial backup options of the TSU family of  
T1 access devices.  
I Supports DTR dialing, event  
driven, and terminal  
command BONDING  
I Occupies a single slot in the  
ATLAS 800 series chassis  
The Nx56/ 64 BONDING Module has no  
external network or user interfaces. Network  
traffic is passed to it though other ATLAS  
modules such as the Octal BRI Module or the  
Quad T1/ PRI module. Similarly, traffic is  
passed to the user through modules such as  
I Hot-swappable  
I Flash upgradeable  
I Industry-leading five-year  
North American warranty  
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