Rear-Panel Features - HP 3585A Service Manual

Model 35 85A
3·8. REAR· PANEL FEATURES
""'-' L I NE
1 1 5V+ 1 1 �25� 48-4 4 OHz
2�OV+ 1 I � I � 48-SSH z
1 80 WATTS MAX
3A MAX
I
1. 5V . 3A/ 1 25V
220V . 1 . 5A/250V
FUSE
S £ ��
@
VOLTAGE .
OVEN R E F OU T
AC Line Input Connector : Accepts power cord supplied with instru­
ment .
AC Line Fuseholder .
Line Voltage Selector Switch .
HP-IB Connector : Used to interface the instrument with the
Hewlett-Packard Interface Bus (HP-IB) for remote operation .
Remote operation is described in the Operating Manual .
The OVEN REF OUT supplies a 1 0 MHz
sinusoidal frequency reference from an internal crystal oscillator,
located in a temperature-controlled oven . The output is ac coupled
and the output impedance is 50 ohms . The nominal output level is
+
1 0 dBm/50 ohms . The output is disabled during the oven 's war-
mup cycle . To use the internal Oven Reference, this output must be
connected to the EXT REF IN jack .
Operation Overview
± x
1 1 0-7 per month
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