Connecting the Fiber Cable
PWRLink II 4800T Optical Transmitter Product Manual Rev A (2/02)
2–3
2.3
Connecting the Fiber Cable
The optical output connector of the PWRLink II transmitter is located on the
rear of the module, as shown in Figure 1-1 on page 1-2.
DANGER:
Invisible Laser Radiation.
AVOID EXPOSURE TO BEAM
.
Never operate unit with a broken fiber or with a fiber connector
disconnected.
To connect fiber optic cable to the transmitter output:
1. Verify that the transmitter module has been mounted into the HLP 4200
platform, as described in Section 2.2.
2. Determine the connector type on the PWRLink II transmitter. The
standard optical connector recommended by Harmonic is SC/APC. Other
connector types can be special ordered.
3. Verify that the type of connector on the fiber cable is the same as what is
on the PWRLink II transmitter, for example the SC/APC.
4. Verify that the fiber cable connector has been cleaned properly. If the fiber
cable connector needs to be cleaned, follow the cleaning procedure
outlined in Section
5.1.1 Cleaning Patch Cord or Pigtail Fiber Optical
5. Verify that the PWRLink II optical connector has not been exposed to any
contamination. If you suspect that the connector may have been exposed
to contamination (for example, by a dirty fiber cable connector), follow the
cleaning procedure outlined in Section
5.1.2 Cleaning Transmitter Module
NOTE:
Any contamination of either the fiber cable or PWRLink II
transmitter connector can significantly degrade optical link
performance. This degradation will most likely manifest itself
as poor carrier-to-noise (CNR) performance.
6. For SC-type optical connectors, note the key characteristics of the mating
connectors and align them accordingly. Gently insert the fiber cable
connector into that of the PWRLink II transmitter until the connector
clicks into place.
For FC-type optical connectors, note the key characteristics of the mating
connectors and align them accordingly. Gently insert the fiber cable
connector into that of the PWRLink II transmitter and tighten the rotating
sleeve of the connector.
Do not overtighten!
2.4
Connecting the RF Broadband Input
The PWRLink II transmitter broadband RF connector is located on the rear
panel of the module, as shown in Figure 1-1 on page 1-2.
The PWRLink II female F connector accepts a 75 ohm impedance coaxial cable
terminated with a male F-type connector. The male F connector on the cable
should have a center pin diameter in the range of 0.64 mm to 0.8 mm. Insert