User's Manual

ECLIPSE INSTALLATION MANUAL
l The high power RFU provides a wide-mouth connection for +/- 21 to 60 Vdc.
Both +ve and -ve pins are isolated from ground.
l The integral DC/DC converter provides polarity protection, under/over voltage
shutdown, over-current limit, and thermal shutdown.
l For operation from +24 Vdc supplies, the associated INU/INUe must be fitted
with a PCC to convert +24 Vdc to -48 Vdc.
Run the supplied power cable through to the power pick up point, which should be
protected by a circuit breaker or fuse in the rack. The circuit breaker or fuse should
have maximum capacity of 8 A.
l For a -48 Vdc supply, connect the blue wire to -48 Vdc (live), and the black
wire to ground/+ve.
l For a +24 Vdc supply, connect the blue wire to +24 Vdc (live), and the black
wire to ground/-ve.
l For NEBS compliance the battery return connection is to be treated as an
isolated DC return (DC-I), as defined in GR-1089-CORE.
NEBS compliant EMI filtering is included.
There are no serviceable fuses.
IRU 600v3
The v3 RFU supports both standard and high Tx power operation, with DC power
supplied over the IF cable from its INU/INUe.
l The RFU is SW configured for standard or high power. High power operation
requires a feature license.
l For 5.8 GHz operation standard power is used. Standard power supports the
29 dBm maximum-limited output power at the antenna port.
l The INU/INUe requires a -48Vdc power input.
l For +24 Vdc operation a PCC (Power Converter Card) converts +24 Vdc to -48
Vdc for connection to the NCC. Two PCCs are required if an NPC is also
installed.
Insertion Loss Labels
Labels on the ACU provide factory-measured insertion loss data. These list the loss
for each filter and circulator, and the total loss through the ACU (filters, circulators,
cables, plus any protection components, such as Tx switch and couplers). Total (com-
bined) loss figures are used by the craft tool (Portal) to enable computation of Tx
power and RSL figures at the ACU antenna waveguide port(s) based on the RFU
measured values of Tx power and RSL.
For IRU 600v2 and IRU 600v3 an additional label shows the insertion loss of the Tx
monitoring port. The value must be taken into account when measuring output
power with a power meter.
260-668066-001 OCTOBER 2012 55