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Line Interface Modules
DS1-2CS and DS1-4CS Overview
5-18
Xedge 6000 Hardware
032R440-000
Installation & Setup Guide
Issue 17
Hardware Settings
Each link on the DS1 LIM has a group of jumpers that must be set as a 100 ohm link type. The
jumpers are located near their associated link connector on the LIM, as shown in the figure below.
Two jumpers for each channel must be positioned in the upper row of pins as shown.
Figure 5-11
DS1-2CS and DS1-4CS LIM Jumper Positions
TX-RX Shield Jumper Setting
On the DS1 LIMs, you must ensure TX and RX jumpers are positioned properly in order to connect
TX and RX shields to chassis ground. These jumpers are located towards the center of the LIM, as
shown in
. There are four rows of six pins, one row for each Link. The left-most set pins
are the TX setting for each Link; the right-most set of pins are the RX setting for each Link.
•
With the jumpers set as shown in
, the TX and RX shields for each Link (DB15 pins
12 and 10, respectively) are connected to chassis ground.
•
Setting the jumpers to the left and right outermost positions isolates the transmit and receive
shields, respectively, from chassis ground.
Table 5-6
DS1 LIM Pinouts
Pin Number
Signal Designation
1
Receive signal
3
Transmit signal
9
Receive return
11
Transmit return
10
Receive shield
12
Transmit shield
Link 0
Link 1
Link 2
Link 3
Link 0
Link 1
Link 2
Link 3
TX
RX
Link 2 and
Link 3 are on
DS1-4CS
Only
100 ohm
not used
not used