Specifications

7-18
TRANSIT PRIORITY EXTENSION TIMER
When the transit priority phase has timed its max or to
its force off point, yet the input remains active, the
transit priority extend timer begins timing down and is
displayed....
NOTES;
1. The cycle timer stops when transit priority extend is
timing.
2. The Max extend timer starts timing down when phase
would otherwise terminate
Note that the extend timer immediately clears and the
phase terminates if the call clears. Also note that during
coordinated operation, the cycle timer stops when the
transit priority extend timer is timing. This prevents the
cycle timer from getting too far ahead of the phasing
which could result in very short timing of down stream
phases. Instead, it stops until the transit priority phase is
released, then starts up again and immediately begins
offset seeking.
TRANSIT PRIORITY INPUT AND TIMER RUN
SCREENS
The following menus and status screens pertain to
Transit Priority inputs and related timers. Go to Basic
run status menu (MM-1)......
TRANSIT PRIORITY....Selection 8,
CALL/DELAY/MAX WAIT TIMERS.....
The TPR input status definitions are as follows:
CALL: Blank = Input not active
X = Input active, transit priority in process
M = Call stored in memory
CW = The input is active but is canceled due
to max wait time out (note 1)
DC = The input is active but is disabled by
the clear call input (note 2)
DP = The input is active but is disabled due
to a higher priority input
DR = The input is active but is disabled due
to min re-service
d = The input is active but the delay timer
is timing
F = The input is active but is failed due to
the 255 second fail time out (failed
until input goes away).
DI = All inputs disabled due to the inhibit
input (note 3)
PE = The input is active but the unit is in
pre-emption
Notes:
1 . The max wait timer also times down when there is a
call in memory, even if the input is not active. The call,
however, will automatically be cleared if the max wait
timer times out before the call is cleared by the normal
clear input. As a result, the TPR (call) input must remain
active for the CW indication to be displayed.
2. The clear call input clears the call stored in memory,
but also inhibits its associated TPr input while active.
3. “DI” will always appear beneath all 6 TPR inputs
when the inhibit (all) input is active regardless of TPr
activity.
DEL: 1-255 = Delay timer timing (times down)
0 = Delay timer not timing or timed out
MX WAIT: 1-255 = Max Wait timer timing (down)
0 = Max Wait timer not timing or has
timed out
FAIL AND RE-SERVICE TIMERS
Pg dwn from Call/Delay/Max Wait timer screen.....
--BASIC STATUS MENU--
1.RUN MENUS 4.PREEMPT 7.MMU STATUS
2.FAULTS 5.MOE STATUS 8.TRANSIT PR
3.CLOCK STATUS 6.SCHED LOGS
“N/A” if not TS2 mode
TPR1 TPR2 TPR3 TPR4 TPR5 TPR6
CALL F M
DEL 0 0 0 0 0 0
MAX WAIT 60 22 0 0 0 0
TMR TPR1 TPR2 TPR3 TPR4 TPR5 TPR6
FAIL 255 255 255 255 255 255
RSVC 0 0 0 0 0 0
RSVC ALL 0
PHASE/OL 1 2 3 4 5 6 7 8 A B C D| CYCLE
SPO r G r r r G r r r r r r| 1 90
MIN 4 TPX 7|MIN 4 TPX 7| TPR
MX1 16 TPR PHS|MX1 21 TPR PHS| 1