Lucent 5ESS DRM, User Manual

Page: 24 / 642

Note that while the DRM emulates the hardware of the AM and simulates the
functions of the CM2, the software associated with the AM and CM2/CMP hardware is
still present in the Administrative Workstation (AW). Portions of this document refer
to the AM and CM2/CMP. The reader should note that references to these items are
not referring to the hardware but rather the software associated with the AM and
CM2/CMP.
Whenever the 5ESS switch core documentation is referred to, the reader must be
advised that the documentation was
not
modified to reflect that the DRM utilizes an
emulated AM and CM2 and does not have the actual AM and CM2 hardware.
Furthermore, procedures that deal with AM/CM2 hardware will be present on the
CD-ROM and should be ignored by DRM personnel.
2.2 ASM Interface for DRM Monitoring and Maintenance
The DRM is monitored and maintained remotely via the Administrative Services
Module (ASM). The ASM provides access to smart maintenance terminals/PCs, high
speed data links, and OA&M functionality for the entire Switching Complex. The user
interface on these terminals/PCs is called a Graphical User Interface (GUI) or ASM
GUI pages. The ASM architecture, administration, maintenance, and the GUI look
and usage, can be found in the 235-200-145,
5ESS Switch OneLink Manager
™
Administrative Services Module (ASM) User’s Guide .
2.3 DRM Architecture
To best understand the DRM architecture, a brief description of the architecture of the
5ESS switch is appropriate. The 5ESS switch, equipped with an ASM, is composed of
four major components:
•
Administrative Services Module (ASM) - provides a remote human interface for
administrative and maintenance functions of the Switching Complex. For
information regarding ASM, see 235-200-145,
5ESS Switch OneLink Manager
Administrative Services Module (ASM) User’s Guide .
•
3B21D Administrative Module (AM) — provides administration and maintenance
capabilities.
•
Communications Module 2 (CM2)
— interconnects the AM to the switching
modules and provides a sophisticated switching and message network.
•
Switching Module (SM-2000)
— provides terminations of lines and trunks to a
switching fabric which has the flexibility to support Plain Old Telephone Service
(POTS), Integrated Services Digital Network (ISDN), Operator Services Position
System (OSPS), Signaling System 7 (SS7), IP packet trunking with SIP
signaling, and tandem and wireless applications.
The DRM combines the functions of the AM and CM2 onto an Administrative
Workstation (AW) which uses an
emulated AM while running the same AM and CM2
software. The DRM supports a single SM-2000, which contains special hardware to
allow it to communicate with the AW. In addition, all call processing functions have
been migrated to the DRM SM-2000 so that all calls can complete should the AW
become unavailable.
For the DRM, the terminal interfaces are remote through the ASM or they can be
connected to the AW locally. The
5ESS switch has terminal interfaces connected to the
AM’s Input/Output Processor (IOP). The IOP contains the hardware to provide front
end processing for the various terminal devices. For the DRM, the emulated AM on
5ESS
®
SWITCH DISTINCTIVE REMOTE MODULE 235-200-150
Feburary 2007
Page 2-2 Issue 3.00O