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TC1630R/S User's Manual
Rev. 2.5
Functional Description
As shown in figure 4, the TC1630 consists of five basic function blocks: DIP switches, LEDs, T1/E1
interface, T1/E1 signal processor and optic interface.
DIP switches are used to configure the TC1630 according to a customer's application such as line code and
line distances. LEDs are used to display corresponding DIP switches settings, power supply status, optic
signal status, signal warnings, alarm, etc... the T1/E1 interface converts T1/E1 analog signals to digital
signals and provides local and remote loopback function. The signal processor composes T1/E1's timing and
data to a bit stream. The optic interface converts the electrical bit stream to an optic signal and vice versa.
Figure 4. TC1630R/S Functional Diagram
T1/E1 Signal Processor
Optic interface
AMI or
B8ZS/HDB3
Line Length
1,2,3
Remote
Loop
Test
LED Indicators on front panel
to optic
cable
Replaceable T1/E1
line Interface Module
Elastic Buffer
to T1/E1 line
from T1/E1 line
Line Driver
Line Receiver
TC1630R/S
External DIP Switches (accessible from front panel)
TxA
RxA
Local
Loop
Test
Power
A,B
Vcc Alarm Optic
Sync
Local
Loss
Remote
Loss
Local
Loop
back
Remote
Loop
back
All
Ones
Warning
Bipolar
Violation
Line
Code
Setting
Line
length
Setting
