DRAKE SCT4860 Руководство по эксплуатации - Страница 10

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Additional Features (continued)

In order for the PC software to identify the proper

SCT4860 to which you wish to connect, each SCT4860

must be assigned a unit ID number. The unit ID number

consists of the rack number, a dash, and the number of

the unit in a given rack. For example, the third unit

(plugged into power socket numbered 3) in rack number

one would have a unit ID number of "1-3", and the tenth

unit in rack number three would have a unit number of "3-

10". The number of each unit in a given rack is deter-

mined by the connector number on the PS151 power

supply to which it is connected.

Programming the rack number is easily accomplished by

using the PS151 "RACK ID:" menu and setting the ID

number with the PS151 front panel set up buttons. If no

RS232 control is desired, this RACK ID number should be

set to 0.

The PS151 will not respond to RS232 activity when its

RACK ID is 0. Any number of PS151s can have a rack ID

of 0.

When using RS232, assign a unique ID, between 1-1 and

7-10, for each SCT4860 to be controlled. Do not duplicate

a number among any of the up to 70 transcoders that are

to be connected through the same RS232 path to the PC.

This RS232 connection can be used by directly

connecting to a PC serial port or remotely by interfacing

through modems. If an auto answer modem is used at the

headend, one can interface via telephone connection.

The RS232 connection can be used to download new

operating firmware to the SCT4860, if needed for use

with future options.

For remote control operation, PS150/SCT1860 systems

and/or PS100/SCT860 systems can be "daisy chained"

with PS151/SCT2860s, SCT3860s, and SCT4860s, if

desired, and can be controlled by the same PC using the

Drake supplied software. A maximum of 64 SCT860s

can be connected in this fashion in addition to the

maximum of 70 SCT1860/2860/3860/4860s. Any

combination of PS100s, PS150s, and PS151s can be

connected in this manner as long as the maximum

numbers indicated above are not exceeded.

Using the SCTs with the LBS2250 L Band Splitter: The

LBS2250 unit should be mounted above the RMT150

with no extra space between the units. One or two LNB, L

band inputs in the range of 950 to 2250 MHz may be

connected to the inputs of the LBS. On the front panel

side of the rack, the LNB inputs of each SCT should be

connected with a short coaxial jumper cable to the output

of the LBS that is directly above it. Then the power supply

cable of any one of the transcoders should be 'looped

through' the LBS2250.

When a LBS2250 has been connected as described in

the previous paragraph, a new menu will appear in the

SCT menu chain, between the MODE and CHANNEL

menus (see chart). This is where the user may select the

setting of the LNB input switch for that transcoder - either

LNB input A or LNB input B may be selected.

An eight character name such as 'DISH 110' can be

programmed for the A setting and the B setting of the

LBS so that the setting is more meaningful if monitored

remotely. This name may be programmed only via the

RS232 remote program using version 2.7 or above

CDROM.