Juniper SRX 5800, Hardware Manual

Page: 234 / 536

Connecting an SRX5800 Services Gateway to an External Alarm-Reporting
Device
To connect the services gateway to external alarm-reporting devices, attach wires to the RED and YELLOW
relay contacts on the craft interface. (See Figure 103 on page 235 .) A system condition that triggers the red
or yellow alarm LED on the craft interface also activates the corresponding alarm relay contact.
Figure 103: Alarm Relay Contacts
The terminal blocks that plug into the alarm relay contacts are supplied with the services gateway. They
accept wire of any gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm
2
), which is not provided.
Use the gauge of wire appropriate for the external device you are connecting.
To connect an external device to an alarm relay contact (see Figure 103 on page 235 ):
1. Prepare the required length of wire with gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm
2
).
2. While the terminal block is not plugged into the relay contact, use a 2.5-mm flat-blade screwdriver to
loosen the small screws on its top. With the small screws on its top facing upward, insert wires into
the slots in the front of the block based on the wiring for the external device. Tighten each screw to
secure the corresponding wire.
3. Plug the terminal block into the relay contact, and use a 2.5-mm flat-blade screwdriver to tighten the
screws on the face of the block. See Figure 104 on page 236 .
235