C
HEETAH
864XR
V
IDEO
M
ATRIX
S
WITCHER
Publication 81-9059-0595-0, Rev. C
October 2010
Proprietary Information of
PESA
3-23
3.9.7
F
RAME
A
LARM
C
ONNECTOR
The three-pin Frame Alarm Connector, illustrated in Figure 3-21, provides an interface for an
external, customer-supplied frame control alarm notification device. The Matrix Frame Controller
determines when a frame alarm condition is declared. This circuit acts as a switch to trigger an
optional external alarm device in the event of a controller fault or failure. The controller alarm circuit
supplies an electronic contact closure, but does not provide a voltage to the external alarm. The
customer-supplied external alarm circuit is connected with a cable constructed as shown in Figure 3-
22.
The Customer-supplied power input to this connector must not exceed
12VDC and the associated amperage must not exceed 10mA.
Connections to connector terminals 1 and 3 are not polarity sensitive.
ALARM
SYSTEM CONTROL
ALARM
RCP PANEL PORT
4
3
2
1
NETWORK
OUTPUT MONITOR
SLOT B
3
SLOT A
REFERENCE
1
1
2
4
2
FRAME
CONTROL
SYSTEM
CONTROL
3
4
PRC LOOP
COM 4
COM 3 / PRC
COM 1
COM 2
AUX FRAME CTRL
FRAME
ALARM
FRAME
ALARM
1
3
2
Figure 3-21 - Frame Alarm Connector
The alarm is activated if any of the following matrix frame controller conditions exist:
•
Finds a card (input, output, matrix, output monitor, power supply, or matrix frame controller)
with a temperature out of range (above 114 ºF)
•
Finds a fan’s voltage out of range
•
Finds a power supply’s voltage or current out of range
The voltage or current must be out of range for three consecutive status poll events before the Matrix
Frame Controller will indicate an alarm.