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SIC-1SAE 23
■ Straight-through cable: the wire sequences of the twisted pair cable crimped in
the RJ-45 connectors at both ends are completely the same. It is used to
connect terminal devices (such as PCs, routers) to Hubs or LAN Switches.
■ Crossover cable: The wire sequences of twisted pair cable crimped in the RJ-45
connectors at both ends are different. It can be used to connect two terminal
devices (such as PCs and Routers). You can such kind of cables by yourself if
necessary.
For the pinouts, identification and making methods of these two kinds of network
cables, see Low-End and Mid-Range Series Routers Cable Manual.
Connecting the Interface
Cable
If the SIC has been properly installed, follow these steps to connect the interface
cable:
Step 1: Connect the Ethernet port of SIC to a PC or router using a crossover cable
and to a Hub or LAN Switch using a straight-through cable;
Step 2: Check the status of LINK LED on the SIC-1FEA panel: ON means the link is
connected and OFF means the link is not connected. In the latter case, check the
line.
SIC-1SAE
Introduction SIC-1SAE, 1-port enhanced high-speed synchronous/asynchronous serial interface
card, provides functions similar to SA, but its serial interfaces support more
protocols, such as RS449, X.21, and RS530.
Interface Attributes The interface attributes of the SIC-1SAE are given in the following table:
Table 3 Interface attributes of the SIC-1SAE
Attribute
Description
Synchronous Asynchronous
Connector DB-28
Number of connectors 1
Interface standard and
operating mode
V.24 V.35, RS449,
X.21, RS530
RS232
DTE, DCE DTE, DCE
Minimum baud rate
(bps)
1200 1200 300
Maximum baud rate
(bps)
64 k 2.048 M 115.2