Raisecom RC801 User Manual - page 11
Raisecom Technology Co., Ltd
10
• RC800-240B basic capacity configuration (4 E1)
Both Slot 1 and 2 are empty. There is no interface for the 5
th
– 8
th
E1 channels.
• RC800-240B max capacity configuration (8 E1)
SUBM-4E1 sub-module is installed into Slot 1. It provides a DB37 male connector for the 5
th
– 8
th
E1 channels. It can be connected with an adapter as the 1
st
– 4
th
channels. Slot 2 must
be empty.
• RC800-240B
expanded configuration
When Slot 1 is installed with a 1 E1 interface sub-module (e.g. Ethernet to 1 E1 converter
sub-module, V.35 to E1 converter sub-module), it is actually the 5
th
E1 channel that be
occupied. If installing a two-channel sub-module, it is actually the 5
th
and 6
th
channels that
be occupied.
When Slot 2 is installed with a 1 E1 interface sub-module, it is actually the 8
th
E1 channel
that be occupied. If installing a two-channel sub-module, it is actually the 7
th
and 8
th
channels that be occupied. Slot 2 does not support 4-channel sub-modules.
4.3. DIP-switch on the Bottom Panel
The DIP-switch can be set by small flat screw-driver.
Each group of dip-switch corresponds to one E1 interface.
Definition as shown below
1
st
2
nd
3
rd
4
th
1
st
2
nd
3
rd
4
th
ON
ON
ON
OFF
Or OFF
OFF
OFF
ON
75Ω unbalanced signal effective
120Ω balanced signal effective
As shown in figure above, the default status is set as “75Ω unbalanced signal BNC
interface effective”.
It is suggested that users should use BNC connector for 75 Ohm unbalanced signal and
RJ45 connector for 120 Ohm balanced signal.
1 2 3 4
ON
OFF