Vertiv
|
XTE 802 Series Walk-In-Cabinet (WIC) Description & Installation Manual (631-205-434)
|
Rev. D
107
ALARM WIRING
starting on page 38 for alarm block location. Refer to
Connecting External Alarms
NOTE!
The customer-connection alarm blocks are punch-down, insulation displacement, split center,
often referred to as telecommunications “66” blocks. Do not exceed the manufacturer recommended
wire size. Normally, 20 AWG to 24 AWG solid twisted-pair copper conductor cables are used for alarm
signals. Wire should NOT be stripped before inserting into block. Use the appropriate tools to insert
wires into the connection points on the alarm blocks.
Alarm blocks are provided for the following purposes.
WIC Alarms
All alarms for customer connections are brought out to an alarm block. For alarm pinout locations on the block,
refer to the Schematic Drawings (SD) either supplied in the WIC and/or as labels on the alarm block housing.
The two (2) alarm blocks are punch-down, insulation displacement type, located on the plywood panel on the
left as door entry is made, below the main ground busbar. The alarms from the NetSure™ 7100 DC plant, as well
as the AC utility and TVSS failure alarms from the PTLC/ATS, the auxiliary contacts on the DC generator 400 A
demarcation circuit breaker, and the Direct Air Cooling (DAC) controller are all factory connected to the alarm
blocks. Refer also to
Site Equipment Alarms
Alarms from customer-provided equipment installed in the WIC relay racks or on the exterior of the WIC shall
be cabled and connected to the alarm blocks by the customer as required for the specific site installation.
Alarm Collection and Aggregation
Equipment and connection for alarm collection and aggregation or multiplexing for remote reporting to a
customer Network Operations Center (NOC) shall be specified and installed by the customer as required for
the specific site capabilities and installation.
