10 Additional Features (continued)
In order for the PC software to identify the proper
SCT2860 to which you wish to connect, each SCT2860
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 SCT2860 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 SCT2860, 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 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 ex ceeded.
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.
