Specifications

Watson-TDM-Manual-W.doc
Version 2.0-01
Watson TDM
Operating Manual
Revision: 2008-02-07 2-3
2.3 Accessories
A range of accessories and system cables are available for the Watson TDM
modem family:
Plug-in modems can be mounted in a 19" subrack with 12 slots (SZ.379.V3) [6]
which has up to 12 free slots for Watson modems. This subrack is normally
equipped with an Alarm Control Unit (ACU SZ.369, [2]) which has a serial inter-
face for a configuration terminal (Monitor interface) and two alarm relay outputs.
Remote management with the Simple Network Management Protocol SNMP is
possible if a Communications Management Unit (CMU SZ.366, [3]) is inserted in
the subrack.
Single plug-in modems can also be mounted in the minirack mechanics (SZ.876,
[7]) or in the tabletop housing for plug-ins (SZ.875, [8]).
For tabletops a 19" rack mount SZ.896 is available that accommodates one or
two tabletop modems.
For the regenerator a number of weatherproof cases is available accommodating
one or several regenerators. See [9] for a description of the regenerator cases.
2.4 Compatibility with other Watson modems
Watson TDM is compatible with other Watson modems using the G.SHDSL line-
code (Watson 5). It is possible to freely mix Watson TDM modems, Watson 5
modems and Watson 5/Watson TDM regenerators on a single DSL link.
Having a different linecode Watson TDM is not directly compatible with the
HDSL-based Watson modems (Watson 2, Watson 3, Watson 4).
Mechanically all Watson modems are compatible, i. e. it is possible to mix Wat-
son 2/3/4/5 and Watson TDM modems in a subrack or use the same minirack
mechanics for Watson TDM and Watson 5.