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Options
1.1
Options
The 7226H Interfacility Link comes with a variety of options:
1. 155nm laser; a 1310 nm laser is standard.
2. LNB powering; the transmitter unit can provide 14 or 18 VDC for
optional LNB powering, depending on the Power Supply in the
1
chassis
3. 50 Ω or 75 Ω Input/Output Impedance/BNC female connector.
Standard impedance is 50 Ω/F type, female connectors.
4. Standalone unit; the 7226H Interfacility Link can be installed as
a standalone unit. If the 7226H is used as a standalone, a
separate power supply must be used.
5. On the side of the 7226HT and the 7226HR units is a label which
lists options 1 to 3. Under each option is a square
includes a particular option the square under the option should
be marked.
Figure 1 Option Label
1. At least one power supply, either a 14 VDC or an 18 VDC, depending on
customer specifications, must be installed in the 7180M chassis. Up to
two rackmounted power supplies may be installed on the chassis. The
two power supplies must have the
two 18 VDC.
External Power Supply
power supply is connected via connector J11. If an external power
supply is used this must be specified when ordering the7226H and the
chassis. The voltage level provided by the external power supply is
customer-defined any may be different from the internal voltage power
supply.
2. The label includes options which are not relevant to the
7226H Interfacility Link.
page 2
.
: An external power supply may be used.The external
2
. If the unit
voltage, either two 14VDC or
same
Document no. 93-005-50-A
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