Unless
otherwise agreed, CTI Field Engineering Staff will perform the following
tasks when installing a new satellite antenna and CTI-850 Control
System at a customer site:
Advance
preparation:
·
Prepare
detailed foundation plans in a form which the customer can use to
solicit foundation bids from local concrete contractors.
·
Prepare
detailed electrical plans in a form which the customer can use to
solicit electrical-work bids from local electrical contractors.
·
Consult
with customer-selected contractors by telephone, fax, or mail as
necessary to answer questions or interpret plans.
·
Arrange
for delivery of the antenna to the customer's site.
·
If
necessary, visit the site to inspect the existing facilities.
On site tasks:
·
Assemble
and construct the antenna, on customer-provided foundation, following
the instructions provided by the antenna manufacturer.
·
Install
the CTI-850 Controller in customer-specified rack.
·
Install
the Antenna Interface Unit (AIU).
·
Install
the Variable-Speed Motor Controller (VSMC) or contactor assembly (if
any) at the antenna.
·
Install
an optical encoder on each axis.
·
Connect
AIU and VSMC to customer-provided electrical power service.
·
Wire
all motors to the AIU and VSMC as required.
Verify the operation of the existing limit switches (rewire or
replace if necessary).
The customer is
expected to furnish:
·
Foundation.
CTI will provide foundation drawings and related documentation
ready for use by a local concrete contractor.
·
Crane.
Unless otherwise specified
by CTI, a crane capable of supporting a two-ton load is required for two
picks. Each pick is
expected to require about one hour; however, there may be a delay of a
few hours between picks.
·
Electric
power supply to the antenna site, including disconnect switches as
required by local electrical codes.
If 230-volt 3-phase motors are used on the antenna, customer
should provide two independent power supplies: a 230-volt 3-phase supply
and a 115-volt single-phase power supply.
The 115-volt supply should be obtained from an independent
circuit; it should not be obtained from one phase of the 230-volt
3-phase supply. CTI will
provide electrical drawings and related documentation ready for use by a
local electrical contractor.
·
A
"Serial Link" cable between the antenna site and the control
unit. This cable consists
of a single run of coaxial cable, such as Belden type 8213 (RG-11) or
8215 (RG-6). The maximum
permissible DC loop resistance is 5 ohms.
A separate Serial Link cable is required for each AIU.
An existing multiconductor cable can be used provided that it
meets the 5-ohm resistance requirement and can be fitted with short
coaxial jumpers with F-connectors.
CTI can supply short copper-shielded coaxial jumpers, fitted with
F connectors, for this purpose.
·
Coaxial
cables between the antenna feedhorn and the receivers.
30131
7/12/99
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