Applications
The
TC1620 Fiber Optic T1/E1 Modem is typically used to link Channel
Banks, PBXs, and M13 multiplexers to DSX-1 Cross Connects in Video
Conferencing and Distance Learning applications. It is also used to link Customer Premises Equipment to CSU/DSUs
and with metallic medium T1/E1 multiplexers to transmit over fiber
optic cable.
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Description
The Model TC1620 is a T1/E1 Fiber Optic Modem that offers
advanced features such as Jitter Removal, Multiple LEDs and a replaceable Line Interface
Module. Because it is based on modern FPGA (Field Programmable Gate Array)
technology, it offers optimum flexibility, extremely low current consumptions and high
reliability. A rackmount version is
available as TC1620R.
Transparent to the framing format, the
TC1620 supports AMI,
B8ZS and HDB3 line codes and DSX-1 (T1) cross connect distances from 0 to 655 feet. It
includes an internal elastic buffer to remove jitter from transmit data.
Five LED indicators help installation and
troubleshooting—one each for POWER, ALARM, BPV, SYNC and LOS. Eight DIP switches, accessible from the panel, provide control settings for line
code, line length, local loopback or remote loopback. The intelligent line code setting
switch eliminates confusion—such as when the line code does not match the line length
setting.
The TC1620 is compatible with all popular types and sizes of
optic cable. Fiber optic connectors are ST; FC is optional. Special four-position and
two-position feed-thru detachable terminals connect the T1/E1 twisted pairs.
Input power
is 12VDC, 24VDC, -48VDC or 115/230VAC with an external power cube. An
extreme temperature (-20oC to 70oC),
TC1620Q is available.
¹NOTE:
For new applications/customers, we recommend the new and improved Model TC1630.
The TC1620 is 100% compatible with the TC1630.
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Technical
Specifications
| Data
Rates |
| T1 |
1.544 Mbps |
| E1 |
2.048
Mbps |
| Optical |
| Transmitter |
ELED,
ELED |
| Receiver |
PIN
Diode |
| Wavelength |
850nm,
1300nm Multimode
1300nm, 1550nm Single Mode |
| Fiber
Optic Connectors |
ST
or FC |
Loss
Budget*
(850nm, 1300nm, 1550nm) |
Multimode
(62.5/125µm): 20dB
Single Mode (9/125µm): 20dB
(Optional: 25dB and 30dB) |
| Electrical |
| Interface |
T1
or E1 (G.703) |
| T1
Connector |
(100
Ohm) Terminal Blocks |
| E1
Connector |
(120
Ohm) Terminal Blocks |
| E1
Connector |
(75
Ohm) Terminal Blocks and BNC(Female) Cable |
| System
|
| Bit
Error Rate |
1
in 1010
or better |
* Contact factory for higher requirements
|
|
| Visual
Indicators |
| System
Status |
Power,
Alarm |
| T1/E1
Status |
BPV,
SYNC, LOS |
| Diagnostic
Functions |
Local
and Remote Loopback |
| Power |
| Standard |
12VDC @
250mA |
| Optional |
24VDC,
-48VDC, or 115/230VAC (with external power cube) |
|
Temperature
|
| Operating |
-10° to
50°C |
| Hi-Temp
(optional) |
-20° to 70°C |
| Storage |
-40° to 90°C |
| Humidity |
95% non-condensing |
| Physical |
| Height |
(2.79 cm)
1.1" |
| Width |
(12.70 cm)
5.0" |
| Depth |
(6.35 cm)
2.5" |
| Weight |
(147.0
gm) 5.2 oz. |
|
|
