Motorola SG 2000 用户手册
B e n c h S e t u p
3 - 5
S G 2 0 0 0 I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l
Figure 3-4 illustrates the RF chassis cover and lid showing the location of the fuses:
F i g u r e 3 - 4
F u s e l o c a t i o n s
F u s e l o c a t i o n s
-20dB
REFER TO
MANUAL FOR
FUSE VALUES
FUSE VALUES
H
RCVR
INPUT
INPUT
FTEC
H
-20dB
ON
ASSEMBLED IN MEXICO
SG 2000
-20dB
CAUTION:
CONTAINS PARTS
ANDASSEMBLIES
ANDASSEMBLIES
DAMAGEBY
ELECTROSTATIC
DISCHARGE( ESD)
ELECTROSTATIC
DISCHARGE( ESD)
SUSCEPTIBLETO
JX P A DU
H
H
L
-20dB
L
-20dB
-20dB
-20dB
-20dB
L
L
PORT 1
PORT 2
PORT 3
PORT 4
JXP 1
JXP 1
JXP 2
JXP 2
JXP 4
JXP 4
MDR
ADU
ADU
ADU
IS
IS
TCU
MAN
FRB
RPM/*
STATUS MONITOR
OFF
ON
SG2-
VARILO SSER
JXP 3
JXP 3
FWD EQ
FWD EQ
FWD EQ
FWD EQ
+24 V DC
IS
IS
Optical Node
F1 F4
F3
F5
F7
F6
F2
F8
F9
The dc power supply 24 V circuit includes fuse (F9) rated at 10 A; the 5 V circuit includes (F8)
which is rated at 5 A.
which is rated at 5 A.
P o w e r S u p p l y S e t t i n g s
You can power the SG 2000 from either 60 Vac or 90 Vac system supplies. The unit is shipped from
the factory set for 60 Vac (
the factory set for 60 Vac (
LO
). If your system uses 90 Vac powering, reposition the suitcase jumper
(Figure 3-5) on the dc power supply to the 90 Vac (
HI
) position to optimize the supply turn-on
voltage for the higher input range. This applies to the SG2-PS2 or the optional SG2-PS.