Verilink Red Zone Encryption (REMS) (880-502423-001) Product Manual - Manual (Page 49)

Black to Red Communicator (BRC)
Red Zone Encryption Management System (REMS) User Manual 4-9
Figure 4-8 Functional Block Diagram of BRC Component Modules
BRC NCC 2020 The front module is based on the Node Controller Unit (NCC) 2020. The
NCC contains the Channel Service Unit (CSU). The CSU performs the
major T1 functions, such as signal framing and encoding. This is the
same module that is a component of the FBR. See Figure 4 -3, NCC 2020
Front Panel.
CDM 2249 The “back” module of the BRC NCC 2020 is based on the Channel
Service Unit Interface Module (CDM) 2249. It receives the encrypted
signal at its Data port. Its network port connects to the T1 carrier network.
Figure 4-9 CDM 2249 Rear Panel
K
G
-XX Enc
ry
p
tor
FBR
To equipment
128-pin
NCC 2020
connector
CDM 2249
Shelf
backplane
To network
BRC To PC/Access Manager
RS449/EIA530
MANAGEMENT MANAGEMENT
EXTENSION PORT-IN INPUT
ALARM
RELAY
NETWORK DATA
2
249
CDM
Network
Port
External
Timing
Port
Data
Port
Alarm
Relay
Jacks
Node
Management
Extension
Port
Node
Management
In
Port
To T1 Networ
RJ-48 connector
To back I/O port (input) of encryptor
NC NO COM
To PC COM port Not used
EXT TIMING