Installation Manual
Quidway R2600/3600 Series Modular Routers
Chapter 8
Function Modules
8-48
Note:
An external adapter is necessary for X.21, EIA/TIA-449, and EIA-530.
Table 8-33 Attributes of ISDN BRI S/T interface of 2S1B
Attribute Description
Connector RJ-45
Number of interfaces 1
Operating mode
---ISDN dialup
---ISDN leased line
Services supported
---ISDN
---Supplementary ISDN services
---Multi-user number
---Sub-address
---Backup
Protocols supported
---PPP over ISDN
---MP
---Q.921
---Q.931
8.10.4 Indicators on Panel
The front panel of 2S1B is shown as follows:
Figure 8-47 Front panel of 2S1B
The meanings of the indicators on 2S1B are shown in the following table:
Table 8-34 Meanings of indicators of 2S1B
Indicator Meaning
Yellow lamp on the left
Off means channel B1 is idle. Off means channel B1 is occupied and data
communication is going on.
Green lamp on the right
Off means channel B2 is idle. Off means channel B2 is occupied and data
communication is going on.
8.10.5 Interface Cable
2S1B has two different interfaces: sync/async serial interface and ISDN BRI S/T
interface. Their matched cables are also different.
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