3Com MSR 20 Network Router User Manual


 
142 CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES
Interface LEDs The following figure illustrates the MIM-1SHL-4W panel:
Figure 162 MIM-1SHL-4W panel
The following table describes the LEDs on the MIM-1SHL-4W panel.
Interface Cable MIM-1SHL-4W uses a tailor-made 4-wire telephone cable of type “Y” or “I”. You
can select the type as needed.
As shown in the following figure, on one end of the type “Y” G.SHDSL cable
there is one RJ-11 connector (X1), which is used to connect the MIM-1SHL-4W
module; on the other end there are two RJ-11 connectors (X2 and X3), which
can connect two 2-wire telephone lines. Pins 3 and 4 of X1 are connected with
pins 3 and 4 of X2, and pins 2 and 5 of X1 are connected with pins 3 and 4 of
X3.
Interface rate In single-pair mode, supports the sending
and receiving independent symmetric rates
in the range from 192 kbps to 2312 kbps
in steps of 8 kbps.
In dual-pair mode, supports the
sending/receiving independent symmetric
rates in the range from 384 kbps to 4624
kbps in steps of 16 kbps.
Interface cable Tailor-made 4-wire telephone cable
Supported services G.SHDSL access over ordinary telephone
lines
Table 98 Interface attributes of the MIM-1SHL-4W
Attribute MIM-1SHL-4W
Table 99 LEDs on the MIM-1SHL-4W panel
LED Description
LINK OFF means no link is present.
ON means a link is present.
ACT OFF means no data is being
transmitted or received.
Blinking means data is being received
or transmitted.