I P - D S U U s e r ’ s M a n u a l
02/02/08
15
Plug the power supply into a standard 115V AC outlet, and plug the barrel connector
from the power supply into the circular connector on the
IP-DSU
faceplate labeled “5
VDC”.
3.4.2 DC
ONLY
Prepare each
IP-DSU
for rack mounting by attaching the mounting ears to each side of
the unit.
Attach the power distribution panel(s) to the rack-mount plate.
Make sure the rack mount panel toggle switches are set to the
OFF
position.
To the rack mount panel faceplate, fasten the strain-relief clamp(s).
Fasten the twelve-slot rack-mount panel to a 19-inch equipment rack or use extension
ears for a 23-inch rack. Slide each
IP-DSU
with mounting ears into one of the twelve
rack-mount panel slots. Secure the
IP-DSU
to the rack mount panel with screws.
For each
IP-DSU
, plug one end of the RJ45-terminated category 5 twisted-pair data
cable into the
IP-DSU
10BaseT LAN interface, and the other end into a 10BaseT LAN
hub or router.
For each
IP-DSU
, plug one end of the RJ45-terminated twisted-pair data cable into the
IP-DSU
console interface, and the other end into the asynchronous device.
For each
IP-DSU
, plug one end of the V.35 (requires DB25 to V.35 adapter) or RS232-C
device cable into the
IP-DSU
device interface and the other end into the existing trunk
cable or trunk module I/O board.
Run the 48V DC (return, minus and ground) wires from a central source through the
strain-relief clamp used for DC wire stabilization. On the rack-mount panel, attach the
return, minus and ground wires to the return, minus and ground connections on one of
the main terminal blocks labeled “48 Vin”. Power is distributed to six terminal blocks
vertically below the main terminal block and labeled “48 Vout”. Each individual 48 Vout
terminal block below the main 48 Vin terminal block powers a single
IP-DSU
. This is
accomplished by jumping short return, minus and ground wires between the panel
terminal block and the
IP-DSU
terminal block. All terminal-block connectors
accommodate 14 awg to 24 awg wire. Strain-relief clamps are used for DC wire
stabilization.
Make sure the rack-mount panel toggle switches are set to the
ON
position.