Introduction Of The Rear Panel; Power Switch; Power Socket; E1 Interface - Raisecom RC801 User Manual

4.2. Introduction of the Rear Panel

4.2.1. Power Switch

This switch is used to turn on/off the power supply.

4.2.2. Power Socket

AC: 220V standard triple-phase power socket
DC: -48V power interface. Left pin for -48V, right pin for 0, and the middle pin for ground

4.2.3. E1 Interface

There is a DB37 male connector at the rear panel, providing the 1
interfaces. Please refer to Appendix B for cable making.
•
When adopting 75 Ohm connector, it is required to plug a DB37 to 8 CC3 coaxial
adapter, which is of CC4B-8G type. From the left is the 1
row is for OUT signals and the lower row is for IN signals.
•
It is not required to plug adapters when adopting 120 Ohm connector.

4.2.4. The Expansion Slot 1 and Slot 2

RC800-240B series provide two expansion slots for accommodating various kinds of
expansion sub-modules. Thus they can provide great configuration flexibility to satisfy
users' requirements. The typical configurations are as follows.
Configuration
Type
Basic Capacity
Max Capacity
Multi-service
Configuration
Figure 4. RC800-240B standalone PDH multiplexer
SLOT 1
Empty
SUBM-4E1
th
sub-module (5
th
8 E1 channels)
Ethernet or V.35
sub-module
th
(occupy 5 E1
channel)
Fast Ethernet
sub-module
th th
(occupy 5 – 8 E1
channels)
SLOT 2
Empty
– Empty
Ethernet or V.35
sub-module (occupy
th
8 E1 channel)
Empty
9
Raisecom Technology Co., Ltd
st th
– 4 E1 channels
st th
– 4 E1 channel. The upper
Transmission
Capacity
4 E1
8 E1
4 E1 plus
multi-service
interface