4-20
FlexNet
®
700 Series Line Extender
Rev F
4
Installing Diplex Filters (E729B Only)
E729B line extenders require the installation of diplex filters. Diplex filters are not provided with return
upgrade kits and must be purchased separately. Contact your C-COR sales representative for details.
➤
To install diplex filters
1. Referring to Figure 4.9, locate the two capacitors and one inductor installed at each diplex
filter location:
■
Input Diplex Filter location: C55, L19, and C54
■
Output Diplex Filter location: C59, L22, and C60
2. Carefully cut away these capacitors and inductors. Do not disturb or remove any other
components.
3. Orient the diplex filters so that their pins align with receptacles on the module motherboard.
Firmly press the diplex filters down onto the motherboard.
4. Refer to
Note
: Installing diplex filters without realigning the E7 Line Extender may degrade signal
quality. Diplex filters add insertion loss, which decreases spacing. Installing diplex filters
may also cause bandedge rolloff and degrade return loss at input and output ports. E7
Line Extender realignment is required after installing diplex filters to meet factory
specifications and to prevent these problems. Contact C-COR Repair Services for more
information.
CAUTION
: When installing diplex filters, do not disturb any components on the diplex
filter circuit board.
Summary of Contents for FlexNet E7
Page 2: ...Introduction fm Page 10 Monday April 1 2002 12 43 PM...
Page 16: ...1 8 FlexNet 700 Series Line Extender Rev F 1...
Page 26: ...2 10 FlexNet 700 Series Line Extender Rev F 2...
Page 64: ...4 22 FlexNet 700 Series Line Extender Rev F 4...
Page 82: ...A 6 FlexNet 700 Series Line Extender Rev F A...
Page 88: ...B 6 FlexNet 700 Series Line Extender Rev F B...
Page 102: ...C 14 FlexNet 700 Series Line Extender Rev F C...
Page 104: ...D 2 FlexNet 700 Series Line Extender Rev F D...
Page 110: ...Index 4 Rev F...
Page 111: ...Introduction fm Page 10 Monday April 1 2002 12 43 PM...