Техническая Спецификация для Cisco Cisco Compact Broadband Node CBN1222 CBN1224

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Compact Outdoor Node Model 90275 
 
2
 
 
Overview 
 
1
AC terminal (max. 10A)
Power supply fuse 5A
Plug-in receiver 1&2
Type 90051 as primary
and redundant
Reverse transmitter
Fabry-Perot
Type 90080
DFB
Type 90083
Type 90086
L.E.D. to indicate
No AGC (yellow)
Rx1 (green/yellow/red)
Rx2 (green/yellow/red)
Fuses (reversible)
To select AC path
Reverse test point
-10 dB for 9008x
Fixings (3 pcs. in total)
Level adjust
To adjust output level
Control port
To setup the node and
for software download
The 91200 terminal can
be connected here
Test point forward path
-20 dB directional
coupled
Diplex filter
Type 75126-xxxx. If the
reverse path is not used
insert a 0 dB link type
74089
DC Voltage indicator
Equalizer (interstage)
862 MHz:
Type 74100-803
3 dB
Type 74100-806
6 dB
Type 74100-809
9 dB
Type 74069
0 dB link
Transponder for remote
management
Type 91051 or 91062
Reverse filter
Type 75128.10xxxx
Autolink (0 dB) if no filter
is used
Voltage lock-out
Type 75018
Reverse attenuator
Type 77140.00xx. xx is
the attenuation in dB
Attenuator 0ut 2
Type 77140.00xx. xx is
the attenuation in dB
Terminal for earthing
RTx2
1
2
90275-9
90275-3
min. 23mm
max.26mm
2
Transponder
-20dB
10AT
-20dB
Diplex
Diplex
Eq
F
Eq
F
Att
F
Att 0-18dB
Att 0-18dB
0-6dB
1
10AT
R
R
Filter
+
-
Level adjust
Rx2
Rx1
Receiver 1
Receiver 2
Reverse Transmitter 2
Reverse Transmitter 1
Control
Port
RTx1
Rx1
Rx2
-10dB
-10dB
Signaling:
No AGC
No opt
Low opt
OK
 
 
Block Diagram 
 
O
E
O
E
RF
switch
Compact
Transponder
µP
Rev
switch
E
O
-20 dB
TP
-20 dB
TP
Out 2
Out 1
TP Rev. 1
Plug-in
Att.
Splitter
Plug-in
Equalizer
Plug-in
Reverse filter
or auto link
Plug-in
Att.
Plug-in
Att.
RTx 1
Opt in
Node
setup
Opt. reverse
out
DC
AC or
DC in
Level adjust
LED Alarms
TP Rev. 2
E
O
RTx 2
-37 dB rel.
out 2
(-41 dB)
-20 dB 9004x
-10 dB 9008x