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TC1630R/S User's Manual
Rev. 2.5
DIP Switch Functions
Slide switch to the Right (On) position to activate the function.
AMI/B8ZS/HDB3:
These switches select the Line Code (see Figure 5).
LEN0/LEN1/LEN2:
These switches define the DSX-1 cross connect distance. There are 5 partitions to
choose from. In a T1 application, this is the length of twisted pair cable connecting the TC1630R/S to the
user's equipment, which may be a CSU or DSU. The cable lengths can be from 0 to 655 feet (see Figure
5).
Local LBT:
This switch initiates the Local Loopback function. The T1/E1 signal is received and decoded,
then looped back to the T1/E1 "out" terminals for diagnostic testing.
Remote LBT:
This switch activates remote unit into Remote Loopback function. The composite optic
signal is transmitted to remote unit and decoded, then looped back to local unit.
Fiber Optic Specifications
Transmission Distances (typical)
The TC1630R/S is compatible with all popular sizes and types of fiber. Transmission distances up to 3km*
are typical over Multimode fiber at 850nm and 4km* at 1310nm. Distances to 35km* are typical over Single
Mode fiber at 1310nm.
Launch Power & Sensitivity
Transmitter:
LED/ELED; typical Launch Power -
-19dBm* (850nm/1310nm MM, @62.5/125µm)
-15dBm* (1310nm Single Mode, @9/125µm)
Receiver:
PIN Diode; typical Sensitivity -
-35dBm* (850nm/1310nm MM, @62.5/125µm)
-35dBm* (1310nm Single Mode, @9/125µm)
*Launch power, sensitivity and distance are listed for reference only. These numbers may vary. Contact factory for
higher loss budget requirements.
ON
LEN2
LOCLB
RMTLB
LEN1
HDB3
LEN0
B8ZS
AMI
1
2
3
4
1 2 3 4
1
2
3
4
5 6 7 8
