Verilink Red Zone Encryption (REMS) (880-502423-001) Product Manual User Manual
Page 59
Setting up external timing
Red Zone Encryption Management System (REMS) User Manual
5-9
Figure 5-5
External Timing Block Diagram of Near-end
In Table 5-1, REMS External Timing Configuration, two valid alternative
timing configurations are given, one in each row
Table 5-1
REMS External Timing Configuration
FBR
BR
RD
TPT
ST
15, 12
RPT
SD
2,14
RPTC
TT
24,11
RSC
RS
4,19
3,16
MUX
TCTC
TT
24,11
RD
RCT
3,16
RT
RTC
17,9
ST
BSC
15,12
SD
2,14
Encryptor
(64 kHz reference
Red Zone
Black Zone
synchronized
with RSC)
to T1 ESF
network
TCT
T1 ESF
from
network
Re-sync leads
EXT CLK
EXT CLK
Loop
or Ext.
timing
Internal
or
External
timing
Near-end MUX
Near-end BRC
Far-end BRC
Far-end MUX
Loop
Internal
Loop
Loop
Loop or External
a
a. Must be from same clock source as EXT input to near-end BRC, or RSC from the encryptor, or 64 KHz REF
(RSC) from FBR.
External
Loop or External
b
b. Must be from same clock source as EXT input to near-end BRC.
Loop or External