2010 Construction and Material Specifications - Ohio Department of ...

733.03
hertz ± 20 percent.
(b) All fault monitoring functions remain suspended.
(c) The AC POWER indicator light flashes at a rate of 2
At the end of this time interval the Monitor begins counting
Watchdog transitions from the controller and prepares to resume normal fault
monitoring.
(4) Resumption of Normal Monitoring. Ensure that the
resumption of normal Fault Monitoring occurs when either:
(a) the Monitor has counted five transitions between the
True and False state from the controller Watchdog; or
RECOVERY.
(b) 10 ± 0.5 seconds has elapsed from the time of LINE
If the controller Watchdog output does not become active,
the Monitor shall go into a Latched Fault condition.
e. Red Monitoring Connector.
(1) Connector. Mount a connector, 3M-3428-5302, with two
3518 polarizing keys, or equivalent, on the Monitor front panel. The pin
assignments of the P20 connector and terminal assembly are defined in this
specification.
Ensure that it is possible to plug and unplug the Red
Monitoring Connector P20 without placing the cabinet into Flash operation.
P20 CONNECTOR PIN ASSIGNMENTS
Pin Function Pin Function
1 CHANNEL 15 RED 2 CHANNEL 16 RED
3 CHANNEL 14 RED 4 UNDEFINED
5 CHANNEL 13 RED 6 SPECIAL FUNCTION 2
7 CHANNEL 12 RED 8 SPECIAL FUNCTION 1
9 CHANNEL 10 RED 10 CHANNEL 11 RED
11 CHANNEL 9 RED 12 CHANNEL 8 RED
13 CHANNEL 7 RED 14 CHANNEL 6 RED
15 CHANNEL 5 RED 16 CHANNEL 4 RED
17 CHANNEL 3 RED 18 CHANNEL 2 RED
19 CHANNEL 1 RED 20 RED ENABLE
Ensure that keying is between pins 3/5, and 17/19. The odd
numbered pins are on one side, and the even pins are on the other. Key the P20
connector and the CMU connector physically alike (to prevent the Red Monitoring
cable from being inserted into the P20 180 degrees out of alignment).
(2) Red Enable Input. Ensure that pin 20 of the Red
Monitoring Connector provides the Red Enable input to the Monitor. When the
Red Monitoring Connector is disconnected, or Red Enable is not present, ensure
that the Monitor checks for conflicting combinations of Greens and Yellows,
836