Marconi Instruments 2955 - Page 28

OPERATION
REAR
PANEL
Fig,
3-2
Rear panel
(T)
IF
OUT
SOCKET.
BNC
socket
supplying
a 110
±10
kHz IF output.
Do not
load
with
less
than
10 kH.
0
DE-MOD
OUT socket.
BNC
socket supplying a
demodulated
output from
the
modulation
meter.
Do not
load
with
less than
10 kO.
(?)
EXT
STD
1
MHz
socket.
BNC
socket
for the
connection
of
an
external
1
MEiz
standard.
Connection
automatically
phase
locks
the
internal
standard
to the external
signal
(4)
AC
supply
fuses.
Time
delay,
cartridge
type,
for
fusing
(?).
For
details,
see
Chap.
2,
Installation.
(^
GPIB
interface
unit:
For
remote
operation
of
the instrument.
,
(?)
AC supply
connector.
3-pin
AC supply
input connector.
(?)
Supply
voltage
selector.
To change the
range.
(?)
DC
supply
fuse.
Time
delay, canridge type, for
fusing
(£).
For
details,
see
Chap.
2, Installation.
(?)
DC supply
socket.
3-pin
socket for connection to
an
optional
battery
unit
or to an
external battery.
For
fitting
a barte.^y pack
and
for
operating
details,
see
Chap.
2,
Installation.
3-4
46881
-622N
Aug,
S8
(Am.
5)