Applications
The TC1680 is ideal for most T3 E3
connectivity applications up to distances of 100km. Typical applications
include replacing coaxial cable with fiber, extending the point of
presence from Telco demarcation points and ATM nodes, transmitting
digitized video or linking T3 E3 multiplexers.
Description
The TC1680 T3 E3 Fiber
Optic Modem provides a high speed point-to-point data link between two DS3
or G.703 conforming devices. User benefits include easy installation and
troubleshooting, high reliability, low power consumption (less than 5
Watts), virtually no jitter (because the signal is re-timed at the remote
end), and overall small size (1.4" X 7.1" X 9.8").
The TC1680 transmits
standard T3 (44.736M) or E3 (34.368M) signals at distances up to 100km. It
is compatible with B3ZS (T3) and HDB3 (E3) coded data streams and conforms
to applicable standards including ANSI T1.102-1993, TR-TSY-000499 and
CCITT G.703.
Diagnostics include
built-in self test, link verification test (local and remote loopback),
and a dry contact for remote alarm. Sixteen LEDs are provided to help
installation and troubleshooting. These LEDs indicate power, alarm
status, T3/E3 signal loss and optical status. Four DIP switches,
accessible from the front panel, control settings for the built-in signal
generator, local & remote loopback, and general alarm.
Power redundancy is
standard, optical redundancy is optional. Both power and optical
redundancy systems include an automatic switchover feature to insure
virtually uninterrupted operation. The TC1680 is available multimode
(1300nm) or single mode (1300/1550nm) and in rackmount (TC1680R) or stand
alone (TC1680S) versions. The TC1680R PC card version fits into
TCRM191 and TCRM195 card cages.
The TC1680 is
compatible with all popular types and sizes of fiber optic cable. Fiber
optic connectors are ST or FC. The electrical connector is BNC. Input
power is 12VDC, optional 24VDC, -48VDC or 115/230VAC with an external
power cube. An extreme temperature version (-20ºC to 70ºC), Model
TC1680T, is also available.
Technical Specifications for the
T3/E3 Fiber Optic Modems modelTC1680
|
Data Rates |
|
T3 |
44.736 Mbps |
|
E3 |
34.368 Mbps |
|
Optical |
|
Transmitter |
ELED, LASER* |
|
Receiver |
PIN Diode |
|
Wavelength |
1300nm Multimode
1300nm, 1550nm Single Mode |
|
Fiber Optic
Connectors |
ST or FC |
Loss Budget*
(1300nm, 1550nm) |
Multimode (62.5/125µm): 15dB
Single Mode (9/125µm): 15dB |
|
Electrical
|
|
Connector |
BNC Female |
|
Interface |
T3 or E3 (G.703) |
|
T3 Line Code |
B3ZS |
|
E3 Line Code |
HDB3 |
|
T3 Pulse Code |
AMI |
|
Impedance |
75 Ohm |
|
Diagnostic
Functions System |
|
Local and Remote Loopback, Signal
Generator, Disable Alarm |
* Contact factory for higher requirements |
|
|
Visual
Indicators |
|
System Status |
PWR A, PWR B, VccA, VccB, ALARM |
|
T3/E3 Signal
Status |
CV, SIGLOS |
|
Optic Signal
Status |
VLIN, RxA, RxB, USE-A, USE-B |
|
Alarm |
|
Dry Contact |
Normal OPEN |
|
Switching Voltage |
80VDC, Max |
|
Switching Current |
0.5A, Max |
|
Switching Power |
10W, Max |
|
Power |
|
Standard |
12VDC @ 400mA |
|
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
(Standalone/Wallmount Unit) |
|
Height |
(3.53 cm) 1.4" |
|
Width |
(18.14 cm) 7.1" |
|
Depth |
(24.89 cm) 9.8" |
|
Weight |
(907 gm) 2.0 lbs |
|
