HPE FlexNetwork MSR Series - Page 159

153
Figure 161 Default DIP switch settings
As a best practice, use the DIP switch as follows:
• When the interface is connected to a 70-ohm cable, turn on switches BIT1 through 8.
• When the interface is connected to a 120-ohm cable, turn off switches BIT1 through 8.
DIP switch settings descriptions are shown in the following table:
Table 239 Description for DIP switch settings
DIP Description
Configuration of
75-ohm impedance
Configuration of
120-ohm impedance
1BIT
75-ohm/120-ohm
selection switch
On Off
2BIT On Off
3BIT On Off
4BIT On Off
5BIT On Off
6BIT
RxRing grounding mode
selection switch
Off: RxRing is grounded
via capacitance.
On: RxRing is grounded
directly.
—
7BIT
RxShield grounding
mode selection switch
—
On: RxShield is
grounded.
Off: RxShield is not
grounded.
8BIT
SxShield grounding
mode selection switch
—
Off: RxShield is
grounded via
capacitance
On: RxShield is
grounded directly.
Connecting a 1/2/4/8-port E1 75-ohm cable (D15/D68 <----> BNC)
CAUTION:
Make sure
you insert the cable into the right interface so as to avoid damages to the interface
module or the chassis.
on
1
2
3
4
5
6
7
8