B
Appendix A • Cabling Specifications
APEX1000 All-Purpose Edge QAM Software Version 2.4.x • Installation and Operation Manual
286
573408-001-a
Pin Number
Signal
Direction
Description
4 and 5
no
connection
6
RX– in
receive
data
–
7 and 8
no connection
CAUTION
To fully comply with applicable Electromagnetic Compatibility (EMC) standards, high
quality shielded twisted pair cable must be used.
RS-232 Interface Cabling
Item
Specification
Connector type
DB9 male shielded connector with screw locks
Cable type
9 conductor shielded
RS-232 Interface Connector Pin Out
Pin Number
Signal
Direction
Description
2
TX
Out
Transmit data
3
RX In Receive
data
5
Ground
Ground
Ground
1, 4, 6, 7, 8, 9
Not
connected
RF Cabling
Item
Specification
Connector type
F type
Cable type
CommScope F59 HEC T/CU Headend Cable or equivalent 75 Ohm 100%
shielded coax cable
DTI Client RJ45 Interconnect Scheme
RJ45 Pin Number
Signal
1
SIG+
2
SIG+
3,4,5,6,7,8
NC