Verilink Red Zone Encryption (REMS) (880-502423-001) Product Manual - Manual (Page 14)

Introduction
1-4 Red Zone Encryption Management System (REMS) User Manual
Black Zone performance monitoring of both the near-end and far end
can be done from the Red Zone.
■
Increased bandwidth
REMS uses the full 1.544 Mbps bandwidth at all points. A 14%
increase in bandwidth is realized when you compare the
uncompromised 1.536 M bps provided by the REMS with the
1.34 4Mbps limit of the “slow down” technique.
REMS system
hardware
configuration Each AS2000 REMS termination consists of two parts:
■
a Black to Red Communicator (BRC/CSU), located in the Black
Zone, and
■
a Frame Bit Repositioner (FBR), located in the Red Zone.
Both the BRC and the FBR are designed to function within either the
Access System 2000 dual line-shelf (DLS 2000) or the “High Density”
multi-line shelf (MLS 2200).
See Figur e1-2, REMS System Equipment and Network Interfaces.
Figure 1-2 REMS System Equipment and Network Interfaces
Red Zone
Common Carrier
or
Local Exchange
Networ
F
B
R
Black Zone
Access Manager 2000
M
U
X
RS-422
T1 or
RS-422 DTE
1.544Mbps 1.544Mbps 1.544Mbps 1.544Mbps
D4/ESF
B
R
C
T1 RS-422
KG81/
Encryptor
KG94
B
R
C
Far end
REMS
D4/ESF