INTRODUCTION AND OPERATION
1-4
May 2000
Part No. 001-2008-204
When returning equipment for repair, use a PO
number or some other reference number on your
paperwork in case you need to call the repair lab about
your unit. These numbers are referenced on the repair
order and it makes it easier and faster to locate your
unit in the lab.
Return Authorization (RA) numbers are not nec-
essary unless you have been given one by the Field
Service Department. RA numbers are required for
exchange units or if the Field Service Department
wants to be aware of a specific problem. If you have
been given an RA number, reference this number on
the Factory Repair Request Form sent with the unit.
The repair lab will then contact the Field Service
Department when the unit arrives.
1.9 REPLACEMENT PARTS
E.F. Johnson replacement parts can be ordered
directly from the Service Parts Department. To order
parts by phone, dial the toll-free number as described
in Section 1-4. When ordering, please supply the part
number and quantity of each part ordered. E.F.
Johnson dealers also need to give their account num-
ber. If there is uncertainty about the part number,
include the designator (C112, for example) and the
model number of the equipment the part is from.
You may also send your order by mail or FAX.
The mailing address is as follows and the FAX num-
ber is shown in Section 1-4.
E.F. Johnson
Service Parts Department
299 Johnson Avenue
P.O. Box 1249
Waseca, MN 56093-0514
1.10 INTERNET HOME PAGE
The E.F. Johnson has a home page on the World
Wide Web that can be accessed for information on
such things as products, systems, and regulations. The
address is http://www.transcrypt.com.
1.11 SOFTWARE UPDATES/REVISIONS
All inquiries concerning updated software, its
installation and revisions should be directed to the
Customer Service Department (see Section 1-4).
1.12 REPEATER OPERATION
1.12.1 MAIN PROCESSOR CARD (MPC)
Refer to Figure 1-4.
•
Programming Jack
J1 provides input connection from the computer
and the "flash memory" in the MPC. The program-
ming information in an IBM
PC programs the MPC
directly from the serial card through an interconnect
cable to the COM1 or COM2 port.
•
Reset
S1 provides a manual reset of the Main Processor
Card (MPC). A manual reset causes a complete
power-up restart.
•
Display and LEDs
Each combination of DS1 display read-out and
CR4/CR5 indication refers to an active alarm. See
Table 1-2 for alarms and definitions. LED indica-
tions: CR1 is blinking; MPC is operational, CR2 on;
high power, off is low power and CR5 on; indicates an
LTR Repeater.
Figure 1-3 ALARM IN TEST MODE
Alarms
When the Repeater is in Test mode the safety
measures are disabled. Therefore, if the Repeater is
keyed for an extended period and the power amplifier
temperature increase, thermal shutdown will not
occur. There are pop-up windows that appear in the
Test mode screens to alert the user that there is an
alarm and action should be taken. Refer to Figure 1-3
for an example of this type of alarm.
NOTE: Safety measures are disabled
RF Thermal Sense Alarm Condition Exists
Ok
