Juniper CBL-M40-PWR-EU Manual Do Utilizador
Replace Cables and Wire Connecting to Routing Engine Interface Ports
M40 Internet Router Hardware Guide
188
Replace Alarm Relay Wire
The alarm relay contacts located on the craft interface to the left of the red and yellow alarm
LEDS connect to external alarm devices that report conditions that trigger a red or yellow
alarm (see Figure 88). The alarm relay contacts accept wire of any gauge between 28-AWG
and 14-AWG (0.09 and 2.09 mm
LEDS connect to external alarm devices that report conditions that trigger a red or yellow
alarm (see Figure 88). The alarm relay contacts accept wire of any gauge between 28-AWG
and 14-AWG (0.09 and 2.09 mm
2
), which is not provided. Use the gauge of wire appropriate
for the external device that you are connecting to the relay contact.
To replace the wires connecting to an alarm-reporting device, follow this procedure:
1.
Prepare the required lengths of replacement wire with gauge between 28-AWG and
14-AWG (0.09 and 2.09 mm
14-AWG (0.09 and 2.09 mm
2
).
2.
Disconnect the existing wires at the external device.
3.
Use a 2.5 mm Phillips screwdriver to loosen the small screws on the faceplate of the
appropriate alarm relay contact—the upper contact for a device that reports high priority
(red) alarms, or the lower contact for the device that reports lower priority (yellow)
alarms.
appropriate alarm relay contact—the upper contact for a device that reports high priority
(red) alarms, or the lower contact for the device that reports lower priority (yellow)
alarms.
4.
Remove existing wires from the alarm relay contact and insert replacement wires (the
NC
label on one contact means “normally closed,”
C
means “common,” and
NO
means
“normally open”). Tighten the screws to secure the wire.
5.
Attach the other end of the replacement wires to the external device.