Huawei AR1200-S Series Hardware Description page 81

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
The S/T interface on the 2BST provides a rate of 192 kbit/s, including 144 kbit/s for data
transmission and 48 kbit/s for maintenance information transmission.
Table 5-64
Table 5-64 Number of interfaces on the 1BST and 2BST
Card
Name
1BST
2BST
2BST cards have two types: SIC and WSIC.
WSIC card are installed.
Table 5-65 Slots of 2BST SIC and WSIC cards
Card
2BST (SIC)
2BST (WSIC)
Functions and Applications
Functions
The 2BST has the following functions:
l
l
The 2BST consists of the following modules:
l
l
Issue 03 (2012-04-20)
lists the number of interfaces on the 1BST and 2BST.
User
Interface
One S/T
interface
Two S/T
interfaces
NOTE
l TE: terminal equipment
l NT: network termination
Provides two ISDN S/T interfaces for voice access.
Implements NT mode.
CPU control module: manages the system and loads programs.
CPLD logic module: provides the working clock and reset signals for the chip, controls the
line -40 V feed, controls the service port status, and monitors the board clock.
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Usage Mode
Scenario
Data services TE
Voice services NT
Table 5-65
Slot
SIC slot
WSIC slot or XSIC slot
NOTE
In an XSIC slot, the WSIC card is installed in the lower part
of the slot. The WSIC card uses the XSIC slot ID as its own
slot ID.
Feed Supported
No
-40 V feed
lists the slots where the SIC card and
5 Cards
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