Allied International AT-8748XL, AT-8724XL manual Apply DC power to the switch for DC models

6 AT-8700XL Series Switch

9.Apply DC power to the switch (for DC models)

Read the Safety and Statutory Information booklet before connecting a DC power supply. A copy of this booklet is included with each switch. It is also included on the Documentation and Tools CD-ROM, or can be downloaded from www.alliedtelesyn.co.nz/support/at8700xl/

Only trained and qualified personnel should connect a DC power supply. Due to exposed terminals, DC powered switches should be installed only in Restricted Access Areas.

DC supply cable specifications:

•Number of wires (cores): 3

•Minimum size: 2.1mm2 (14 AWG)

•Minimum cable rating: 600V, 90 degrees Celsius DC power supply specifications:

•48 VDC (39-60 VDC is acceptable)

•Either positive grounded or negative grounded Circuit protection:

•Use a 10 Amp circuit breaker

To connect the DC supply:

a)Ensure the supply cable is not live

b)Strip the supply cable wires to expose 8mm (0.31 in.) of bare conductor

c)At the switch, connect the ground wire to the ground terminal (terminals can be identified by the diagram on the switch’s rear panel, see Figure 2). Tighten the terminal to between 0.6-0.8 Nm (0.041-0.055 pound-force per foot)

d)At the switch, connect the positive feed to the + (positive) terminal and the negative feed to the - (negative) terminal. Tighten the terminals to between 0.6-0.8 Nm (0.041-0.055 pound-force per foot)

e)Ensure there are no exposed conductor strands

f)Secure the supply cable (to the rack framework or similar object) so that the connections are isolated from any force applied to the cable

g)Ensure the circuit breaker is in the Off position

h)Connect the supply-cable wires to the circuit breaker

i)Energise the circuit breaker

C613-04042-01 REV D