Operations Interfaces
6-10 Issue 8.0 July 2002
Remote Access Using the OC-48 Data
Communications Channel (DCC) 6
The FT-2000 OC-48 Lightwave System supports CIT remote access from the
local terminal to a remote terminal using the OC-48 data communications channel
(DCC). The FT-2000 OC-48 Lightwave System supports one incoming remote
login session and one outgoing login session at a time. For example, a local user
can gain remote access to a remote terminal at the same time as a remote user
can gain remote access to the local terminal.
For more information about establishing remote access, refer to the "Operation
and Maintenance (TOP)" section (Volume II).
Remote Access Using the OC-48 Section Orderwire 6
In Release 6 and later releases, the FT-2000 OC-48 Add/Drop-Rings Terminal
supports CIT remote access using the OC-48 section orderwire. This allows the
following:
n Remote access from a terminal to a repeater site
n Remote access from a repeater site to a terminal
n Remote access from a repeater site to another repeater site.
Figure 6-1 shows a 2-fiber OC-48 bidirectional, line-switched ring with two
FT-2000 OC-48 Add/Drop-Rings Terminals and two FT-2000 OC-48 Repeater
Bays. The FT-2000 OC-48 Add/Drop-Rings Terminals and FT-2000 OC-48
Repeater Bays must be equipped with the new
Dantel
orderwire assembly
(A18-05547-01). At each node, the orderwire assembly has connections to the
section orderwire [SECTION OW (LOC OW)] and the CIT (DTE) interfaces. The
orderwire assembly cannot be used for voice communications and CIT remote
access simultaneously.
The FT-2000 OC-48 Repeater Bays in the ring must be equipped with the
Orderwire (OW) circuit pack to access the OC-48 section orderwire.
One node in the ring must be designated as the break point node (Node 0 in
Figure 6-1) to avoid oscillating audio in the system. At the break point node, the
orderwire assembly should only be connected to one section orderwire interface
(east or west). The break point node should be in the central office where
maintenance activity is most likely to be initiated.
A CIT and modem are required to establish a remote login. The CIT must be a PC
equipped with FT-2000 CIT-PC software. For more information about establishing
remote access, refer to the "Operation and Maintenance (TOP)" section
(Volume II).
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