TC1900 is often used to extend telephone service in campus networks,
power plants, substations, etc or use an existing service data channel
to set up a telephone link. It
is also used to set up "Hot Links" telephone service via
existing RS-232 links on satellite, fiber optic or microwave networks.
Other applications include using the inherent benefits of fiber
optics to reduce noise/EMI or maximize security/isolation.
TC1900 application diagrams
TC1900 "Quick-Talk" Phone Extender can turn a fiber optic
network or RS-232 circuit into a voice network simply by plugging a
telephone set into an RJ-11 connector.
It is compatible with most PBXs or Key Systems.
is typically used to extend dial-up phone service to remote sites over a
fiber optic or RS-232 circuit. For
example, a user can extend a secured phone link to a remote site via an
existing satellite or microwave RS-232 data connection.
With the optional fiber optic front end, Quick-Talk can extend a
phone line up to 20 miles away.
provides 2-wire FXS (foreign exchange subscriber) on the telephone side
with ring down capability and FXO (foreign exchange office) on the PBX
side. When both sides are set
to FXS, a "Hot Link" can be established; when one side lifts up
the handset, the other side starts ringing.
in standalone (TC1900S) or rackmount (TC1900R) versions, it is compatible
with all popular types and sizes of fiber optic cable. Diagnostic aids
include 16 diagnostic LEDs for indicating power, ring, FXS, FXO, and audio
activity. The TC1900R PC Card version fits into TCRM191
and TCRM195 rackmount card cages.
is available with RS-232 or optical interfaces.
The optical interface is available in multimode (850/1300nm) or
single mode (1300/1550nm) versions, with ST or FC connectors. A local dry
contact relay is also provided for external alarm and ringer connection.
is 12VDC or 115/230VAC with an external power cube. Power options include
24VDC or -48VDC.
Power redundancy is standard.
Electrical connectors are RJ-11 Female for the telephone set, DB9
female for RS-232.
Female (2-wire used)
Future Release: 32k, 38.4k, 48k, 56k, 57.6k, 64k
1300nm, 1550nm Single Mode
(850nm, 1300nm, 1550nm)
Single Mode (9/125µm): 15dB
* Contact factory for higher requirements
A, PWR B, VccA, VccB
and Rx volume, Local off-hook, Remote off-hook, FXO,
FXS, Ring, Optic Rx, Electric Rx
-48VDC, or 115/230VAC (with external power cube)
||-40° to 90°C
||(18.14 cm) 7.1"