ADTRAN TRACER 2xT1, Руководство пользователя

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TRACER 2xT1 User’s Manual
61280003L2-1B
Section 2 Installation
20 Preliminary
Directions for Changing the Frequency Plan on the Rack Mount RFC
1. Remove RFC top cover by removing six screws.
2. Disconnect the cables at the “Tx” and “Rx” RFC module ports. Swap and reconnect these
two cables to the RFC module ports. Minimum bend radius on these cables is 3/4 inch. Use
care in handling and forming bends in these cables.
3. Reinstall the RFC top cover with the six screws previously removed.
Directions for Changing the Frequency Plan on the Mast Mount RFC
1. Remove the lid of the Mast RFC.
2. Disconnect the two cables at both ends; at the diplexer and RFC module.
3. Swap and reconnect these cables. Minimum bend radius on these cables is 3/4 inch. Use
care in handling and forming bends in these cables.
4. Reinstall the lid of the Mast RFC.
CONNECTING THE BBP AND THE RFC
The BBP and the RFC are connected by an IF cable, either supplied by ADTRAN (for rackmount
assembly) or by the customer (for mastmount assembly). This single connection provides everything the
RFC requires. The cable assembly attaches to the ports labeled “IF” on the BBP and the RFC.
APPLYING POWER
If the ADTRAN supplied tabletop power source is used, simply plug it into the circular receptacle
located in the “DC Power” area on the rear of the BBP. If a source of 21 to 60 volts DC (30 watts),
either polarity referenced to ground, is available, it may be attached to the terminal block located on the
rear of the BBP. The positive lead should be attached to the “+” side of the block and the negative lead
should be attached to the “-” side of the block.
C A U T I O N
Power sources must not be attached to both the circular connector and the terminal blocks at
the same time or damage will occur.
AUTOMATIC BBP FREQUENCY PLAN
Upon the initial application of power, the BBP will default to the factory-preset Frequency Plan, or to the
Frequency Plan determined by the cable configuration of the RFC. The LED will indicate which
frequency plan is active. On subsequent reboots, such as after a loss of power, the BBP will default to
the most recently used Plan setting.