Arris NC4000 - Return Path Transceivers

2-8
NC4000 1 GHz Node
TM 87-10923 Rev E
Figure 2.8
AR4x14G Forward
Path Receiver
Table 2.1 Forward Path Receivers
Unit
Bandpass
Application
AR4003G
54─1002 MHz
45/54 subsplit, 1 forward segment
AR4214G
51─1002 MHz
45/54 subsplit, Hi Gain with 1 forward segment
AR4224G
51─1002 MHz
45/54 subsplit, 2 forward segments
AR4103G
70─1002 MHz
60/70 subsplit
AR4114G
70─1002 MHz
60/70 subsplit
AR4124G
70─1002 MHz
60/70 subsplit, 2x2 segmentable
AR4403G
85─1002 MHz
65/85 subsplit
AR4414G
85─1002 MHz
65/85 subsplit
AR4424G
85─1002 MHz
65/85 subsplit , 2x2 segmentable
AR4503G
102─1002 MHz
85/102 subsplit
AR4514G
102─1002 MHz
85/102 subsplit
AR4524G
102─1002 MHz
85/102 subsplit, 2x2 segmentable
Subsplit is in MHz and defines the upper end of the return RF and the lower end of the
forward RF. For example, a subsplit of 45/54 means return RF is 5 to 45 MHz and
forward RF is 54 to 870 or 1002 MHz.
2.3.5 Return Path Transceivers
Return path transceivers convert incoming RF from subscribers to optical output signals to be sent
to the headend (or hub). Figure 2.9 shows an example of a DT4250N Universal Digital Return Path
Transceiver. NC4000 nodes accommodate one or two DT4xxx transceivers. A single transceiver
will support one or two returns. A second transceiver would only be required for redundancy.
Table 2.2 lists the DT4xxx transceivers available for the NC4000. A transceiver is required in slot A
of the lid motherboard for node monitoring/management. A second transceiver (when
applicable) goes in slot F. See 3.5 Return Path Configuration on page 3-10 for return path transceiver
installation procedures.
2
AR4x14G
PAD
EQ
1V/mW
CNTRL
-20dB
T.P.
ALC
ALARM
Analog Receiver
101483