Hardware Description - Nortel Communication Server 1000S Installation And Configuration Manual

Channel Service Units (CSU)

Hardware description

MG 1000S/MG 1000S Expansion
When connecting the DTI/PRI to the public network, CSUs are required by
most operating companies. One CSU is required per PRI. Suitable CSUs
which support 64 Kbps clear and Bipolar 8 Zero Substitution (B8ZS) are
available from vendors such as Verilink, Digitalink, Kentrox, and Tellabs.
Note: Contact your Nortel Networks Sales representative for specific
local CSU requirements.
The MG 1000S and MG 1000S Expansion contain physical card slots,
numbered 1 to 10. When configuring the CS 1000S system, the physical card
slot numbers must be transposed to logical card slot numbers. For example,
to configure a card physically located in slot two of the MG 1000S one, use
logical slot 12. To configure a card physically located in slot two of the
MG 1000S two, use logical Slot 22.
ISDN Primary Rate Interface
1.5 Mb PRI implementation
Installation and Configuration
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