Physical Description
19
Ports
The SDA-4S Type II and SDA-4S/VL Type II adapters provide ports on their bottom panels,
which are described in the table below:
Port Interface
4 x 8-pin RJ-45 10/100BaseT with subscriber's network
(supports Auto Negotiation and MDI/MDI-X
automatic crossover, allowing connection of
straight-through or crossover cables)
15-pin D-type (female) 10/100BaseT with ProST
AC power socket Subscriber's power outlet (110/240 VAC,
50/60 Hz)
Note: The ports of the SDA-4S models support Auto Negotiation, allowing automatic
configuration for the highest possible speed link (10BaseT or 100BaseT), and Full Duplex or
Half Duplex mode. In other words, the speed of the connected device (e.g. PC) determines
the speed at which packets are transmitted through the specific SDA-4S port. For example, if
the device to which the port is connected is running at 100 Mbps, the port connection will
transmit packets at 100 Mbps. Conversely, if the device to which the port is connected is
running at 10 Mbps, the port connection will transmit packets at 10 Mbps.
In addition, the SDA-4S ports support MDI/MDI-X automatic crossover, allowing connection to
straight-through or crossover cables.
LEDs
The LEDs description for all SDA-4S types is the same as for the SDA-4SDC below.
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