7310 Installation and User’s Guide
Appendix IV 7100M Chassis
Note
If either LED is not lit, refer to Trouble Shooting on page 37.
CAUTION
When monitoring the voltage outputs use a high resistance DVM only.
10.2.2 Setting Up the Receiver
1. Place the 7310R Receiver in slot 1, 3, 4, or 6 of the 7100M Chassis
(refer to Figure 7, page 22)
15
. The operating base plate temperature
must be between -10
°
C to 55
°
C.
2. Apply AC power to the chassis. The Power Supply’s LED should
be lit.
3. On the rear panel connect the fiberoptic cable to the Optical
Connector. The Opt. LED should be lit.
4. Using an optical power meter, measure the optical power coming to
the Receiver from the fiberoptic cable. The power levels of the
Receiver should be the power level measured at the Transmitter minus
the fiber loss
16
.
Alternatively, use a DVM to measure the voltage at:
•
pins J10-P7 through J10-P12 for the slot being measured (Refer
to Table 13 on page 64 for details for details regarding J10
pinouts) (7100M Rackmount). The voltage level should be 1V
for each 1 mW measured at the Receiver input.
•
at pin #6 of the 9 pin connector (standalone)
5. On the rear panel, connect the fiberoptic cable to the Optical
Connector. The Opt. LED should be lit.
6. On the rear panel, connect the coax cable to the RF Output
Connector.
Note
If either LED is not lit, refer to Trouble Shooting on page 37.
15
If the 2000 RF Switch is being installed in slots 2 or 5 of the 7100M. If the 2000 RF Switch is
not being installed, then the 7000R can be placed in slots 1 - 6.
16
Fiber loss is defined as:
(0.4 dB/km x length (km) of the fiberoptic cable) + (0.5 dB x number of connectors).
For example if a link was 10 kilometers long and had two connectors the loss would be:
(0.4 dB/km x 10 km) + (0.5 dB x 2) = 5.0 dB.
A 6 dB loss is equivalent to a 4 times loss (i.e. 25% of original launched power)
Foxcom Proprietary Information
Document No. 93-005-39-A1
51
