DRAKE MPM860AG Manuale d'uso - Pagina 4

Sfoglia online o scarica il pdf Manuale d'uso per Hardware del computer DRAKE MPM860AG. DRAKE MPM860AG 8. Channel 3 or 4 agile processor
Anche per DRAKE MPM860AG: Manuale (4 pagine), Manuale (4 pagine)

Stampa la pagina

Installation

CONNECTIONS AND CONTROLS

All connections to and from each processor are

made through the rear panel.

INSTALLATION NOTES

Level adjustment provides optimum performance

in multi-channel installations. The output levels

should be checked periodically with a spectrum

analyzer or appropriate meter to insure that

output levels are properly set.

RACK MOUNTING

Adequate ventilation is very important in rack

mounting installations. Excessive heat will

shorten component life and performance.

The RMM12 or RMM4A chassis should be spaced

at least 1RU apart whenever and wherever

possible. Some air movement is a mandatory

requirement in enclosed rack cabinets.

POWER SUPPLY REQUIREMENTS

Power for units mounted in the RMM12 rack

mounting chassis is to be supplied by a Drake

model PSM121 Mini Mod Series Power Supply. A

single PSM121 can power up to twelve (12) units

of most Drake Mini Mod Series models.

Likewise, an RMM12 can hold up to twelve (12)

Drake Mini Mod Series models as well as a single

PSM121 Mini Mod Series Power Supply.

The power supply in the four-position Drake model

RMM4A system is built into the chassis and cannot

be removed. The RMM4A will securely hold and

power up to four (4) units of the MPM860AG.

FREQUENCY CHART

The table on the following page shows the

standard CATV channel coverage. Where an oﬀset

is indicated, this amount of positive frequency

oﬀset is added to the frequency indicated in the

middle column. As shown, this occurs only on

channels required to be oﬀset by the FCC.

HRC or IRC frequencies can be set by means of an

internal jumper (see Figure 3).

No jumper will result in the STD channel plan

selection.