Alpha Technologies AlphaNet DSM3x Installations- und Schnellstarthandbuch - Seite 5
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Installation Procedure, continued
11. Make Battery Sense Wire Kit connections. See the battery diagrams that came with the sense wire kit or reference the
DSM3 Series Technical Manual (Alpha p/n 745-814-B8).
12. Connect the RF drop and make front panel connections as shown in Fig. 10 for the DSM3, or Fig. 11 for the DSM3x.
The DOCSIS specification for downstream power level is ± 15 dBmV. However, for optimal performance, set the level
as close to 0 dBmV as possible. RF attenuators or cable simulators may be required to obtain optimal downstream and
upstream RF levels.
To Battery Sense Wire Harnesses
XM2 SI
(Serial Interface)
Card
Communications
Port
S
System Port
Y
S
C
O
M
NOTE:
Each power supply must have a unique address. Refer to Intelligent CableUPS technical manual
(p/n 017-805-B0), or the DSM3 Series Transponder technical manual (p/n 745-814-B8) for additional
information.
746-114-B1-001 Rev. A (02/2011)
Fig. 10, DSM3 Front Panel Connections
"Master"
XM2 SI
(Serial Interface)
XM2
Card
S
Y
S
C
O
M
Communications
Port
Battery String
Connectors
Fig. 11, DSM3x Front Panel Connections
Tamper Switch Connector
Alpha Bus Cable
ECM Interface (Alpha p/n 704-709-20)
Tamper Switch Connector
RF Cable to Headend
Required
Grounded Surge Protector
(Alpha p/n 162-028-10 or equivalent)
A/B
To Battery Sense Wire Harnesses
C/D (option on
DSM3x only)
RF Cable to Headend
Required
Grounded Surge Protector
(Alpha p/n 162-028-10 or equivalent)
Generator (ECM)
(Alpha p/n 744-726-XX)
ECM Technical Manual p/n 744-862-C0
available at: www.alpha.com
Legend:
Connections
Connections with more
than one power supply
5