Arbiter Systems 1088A, Operation Manual

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162 Options List
C.15.5 Option 19 Firmware Setup
There is no setup in firmware for this option.
C.15.6 Connections
All connections to the rear-panel terminal strip should be made using spade lugs or ring lugs
suitable for use with #6 screws.
Refer to Figure C.17 and the specifications given above for
terminal assignments. The designations normally-open and normally-closed refer to the position of
the relay contacts during normal operation, prior to encountering an out-of-lock condition. This is
a fail-safe relay; it is in the faulted state with power OFF.
Figure C.18: Option 19 Relay Connections
Note that in the above diagrams, n.c. and n.o. correspond to the rear-panel terminal markings, and
refer to the condition when the relay is energized (normal clock operation).
C.15.7 Configuration
After the connections have been made, configuration of the fault relay is accomplished in the same
manner as configuration of the Out-of-Lock function (the relay is driven internally by the Out-of-
Lock circuitry). The Out-of-Lock function is enabled and configured using the SETUP menu for
the 1088B, which is described in Section 5 of the 1088B Operation Manual.
The SETUP menu allows entry of a value between 00 and 99 for Out-of-Lock Delay Time. The
delay time value represents the amount of time, in minutes, that satellite synchronization must be
continuously lost before the instrument outputs an Out-of-Lock signal and simultaneously activates
the Out-of-Lock relay. If the value is set to 00, the Out-of-Lock function is disabled, and the Out-
of-Lock output and the relay are both in the locked state whenever power is on.
The procedure for setting the Out-of-Lock function is as follows:
1. With the clock power turned on, press the SETUP key. The display should change to read,
SET RS-232?.
2. Press the SETUP key repeatedly, until the display reads, SET OUT-OF-LOCK?. Press the
ENTER key to select the Out-of-Lock sub-menu. The current out-of-lock delay time (between
00 and 99) will be displayed.
3. Pressing the UP and DOWN keys will change the selection. When the desired out-of-lock
delay time is displayed, press the ENTER key to confirm the choice and return to the first
level of the SETUP menu. To return the 1088B to normal operation, press one of the function
keys in the top row of the front panel keyboard.