Appearance; Interface Attributes; Installation Manual - Huawei Quidway R2600 Series Installation Manual

Installation Manual

Quidway R2600/3600 Series Modular Routers
2S1B can be used in R2600/3600 series. It is mainly responsible for receiving,
transmitting and processing the data streams on the 2-channel sync/async serial
interface and the 1-channel ISDN BRI S/T interface. The ISDN BRI S/T interface can
work in dialup mode and leased line mode.
2S1B has two DB-50 interfaces to connect with external sync/async interfaces, and it
also has a RJ-45 connector for connection with ISDN BRI S/T.

8.10.2 Appearance

The appearance of 2S1B is shown in the following figure:
Figure 8-46 Appearance of 2S1B

8.10.3 Interface Attributes

2S1B has two different interfaces: sync/async serial interface and ISDN BRI. Their
respective attributes are given in the following two tables:
Table 8-32 Attributes of sync/async serial interface of 2S1B
Attribute
Connector
Interface
standard and
operating mode
Minimum baud
rate (bps)
Maximum baud
rate (bps)
Services
supported
Protocols
supported
Sync
DB-50X2
V.24 V.35
DTE
DTE DCE
DCE
1200 1200 1200
64K 2.048M 2.048M
---Dialup via Modem
---DDN
---Terminal access service
---PPP
---MP
---LAPB
---X.25
---HDLC
---SDLC
---Frame Relay
8-47
Description
X.21 EIA/TIA-449 EIA-530
DTE DTE DTE
DCE DCE DCE
Chapter 8
Function Modules
Async
DB-50X2
EIA/TIA-232
300
115.2K
---Dialup via Modem
---Backup
---PPP
---SLIP
---MP