Alpha Technologies DSM3 for XM2 - Technical Manual - Manual (Page 10)

10 745-814-B8-001, Rev. C (03/2014)
All power supply data is stored in the power supply inverter module's class information base (CIB) tables in the power supply.
This data is accessible directly via the power supply’s smart display (see the power supply’s technical manual for details).
The CIB tables are the source of the Communications Module’s data.
The DSM Series contains both SCTE-HMS Management Information Base (MIBs) and the proprietary Alpha MIB tables. The
SCTE-HMS MIBs are industry standard MIB tables that store power supply, battery and generator data from the CIB tables
(See Section 6.0, Data Management). The Alpha MIB contains all the data of the SCTE-HMS MIBs plus additional power
supply settings and values as well as DSM3 Series configuration values.
An external generator or additional power supplies may be connected through the COM (AlphaBus) port permitting
monitoring locally through the Ethernet connector or remotely via the Web page or SNMP-based Network Management
System.
Power supply and Communications Module parameters can be monitored and set locally using a personal computer and a
standard Ethernet cable.
The DSM3 Series transmits data via its cable modem directly over the Coax or Hybrid Fiber Coax network.
The Cable Modem Termination System (CMTS) is the bridge between the cable network and the TCP/IP network. The DSM3
Series’ cable modem communicates directly with the CMTS.
The Dynamic Host Control Protocol (DHCP) server needs to be provisioned with the DSM3’s cable modem RF MAC Address
and the MAC Address needs to be assigned a DOCSIS Configuration File.
The DOCSIS Configuration File and firmware files should be available in the Root Directory of the Trivial File Transfer
Protocol (TFTP) Server.
The Time of Day (TOD) Server provides the cable modem with the current date and time via the SNTP protocol.
A Network Management System (NMS) or MIB Browser allows remote monitoring of parameter values and changing of
settings in SNMP MIB tables. SCTE-HMS and Alpha MIBs must be installed in the browser. Alarms and traps can be set and
monitored.
The power supply and generator may be accessed remotely through the Communications Module's Web page by placing its
IP address into a standard Internet Web browser.
Power Supply
Local Computer
Coax/HFC Network CMTS
TCP/IP Network
SNMP-based Network Management System
DHCP Server
1
DSM3
Series
2
External Generator
3
4
5 6
TFTP Server TOD Server
Web Browser
7 8 9
10
11
1
2
3
4
5
6
7
8
9
10
11
Fig. 2-1, Representative System Arrangement
2.0 Overview
2.1 System Diagram