Alpha Technologies DSM3 for XM2 - Technical Manual - Manual (Page 63)

63 745-814-B8-001, Rev. C (03/2014)
Fig. 7-17, System Interconnection Diagram
7.8 Front Panel Connections
Connections
Connections with more
than one power supply
Battery Sense Wire Harness
Refer to Section 8 for part numbers and
wiring options.
C
O M
S
Y S
C
O M
S
Y S
Generator (ECM)
ECM to SCM Interface
(Alpha P/N 704-709-20)
B
C
A A
B
Comm Port
System Port
Battery Sense Connections
B
C
A
A
Environmental
Tamper Switch Connector
I/O connection
Ethernet connection
RF connection
7.0 Installation
Connect the RF drop according to the diagram below. The RF drop must have a properly installed ground
block in the power supply enclosure. Recommended downstream RF level is 0 dBmV. Connect any other
front panel connections at this time (e.g. battery strings, tamper switch).
RF Cable
to Headend
Grounded Surge Protector
(See Caution Above)
Fig. 7-16, Connecting the RF Drop
7.7 Connecting the RF Drop
Linked CableUPS
Serial Interface Cards
DSM3 Series in
Primary XM2
AlphaBus Cable
(Alpha P/N 875-190-20 for 6',
21 for 9', 22 for 18', 23 for 35')
Install a grounded surge suppressor (Alpha P/N 162-028-10 or equivalent).
CAUTION!