7.0 Installation, continued
70
704-939-B10-001 Rev. A5 (06/2019)
C
O
M
S
Y
S
C
O
M
S
Y
S
A Ground Surge Protector is Required. (Alpha
p/n 162-028-10 or equivalent)
CAUTION!
Communications Port
Alpha Bus Cable
ECM Interface
(Alpha p/n 704-709-20)
Generator (ECM)
(Alpha p/n 744-726-XX)
Tamper Switch Connector
To Battery Sense
Wire Harnesses
A/B
C/D
RF Cable
to Headend
Communications
Port
System Port
XM2 SI
(Serial Interface)
Card
“Master” XM2
XM2 SI
(Serial Interface)
Card
Connections
Legend
Connections with more than one power supply
7.5 Front Panel Connections
Alpha Technologies Services, Inc. recommends tightening the RF cable connector and the cables attached to the
Grounded Surge Protector to a torque setting of 10in-lb ± 1in-lb.
NOTICE
:
Fig. 7-6, System Interconnection Diagram