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Getting Started
1.3.6
Sync out
This rear-panel TTL output provides a logic signal that mirrors the
commanded state of the shutter. A high output is provided when the
shutter is commanded to the
open
state, and a low output is given
when the shutter is commanded to the
closed
state.
Note: The shield of this BNC connector is connected to earth ground.
1.3.7
Alarm output
The
Alarm Out
rear-panel BNC connector is a TTL output that is
normally held high at
+
5 VDC. This signal is asserted (driven low)
whenever the front panel
FAULT
indicator is lit.
The
Alarm
output port is always active. The polarity of the signal is
such that the SR470 will no longer hold the
Alarm
signal at
+
5 VDC
in the event that it loses line power.
Note: The shield of this BNC connector is connected to earth ground.
1.3.8
Remote interfaces
Remote operation of the SR470 is supported with GPIB, RS-232 and
Ethernet computer interfaces. All configuration options are settable
from the front panel (
§
1.2.6) or over the remote interface.
For additional information about the remote interface configuration,
please see
§
1.2.6.
1.3.8.1 IEEE-488 GPIB
The SR470 comes with an IEEE-488 port for communicating over
GPIB. The port is located on the rear panel of the SR470 The GPIB
address is configured from the front panel; please see
§
1.2.6.2 for
more information.
1.3.8.2 Ethernet
The SR470 comes standard with an RJ-45 network communications
port located on the rear panel. The port may be used to communicate
with the SR470 over a 10
/
100 Base-T ethernet connected network or
LAN. The SR470 supports static network configuration as configured
from the front panel; please see
§
1.2.6.3 for more information.
The ethernet hardware (MAC) address is printed on the serial num-
ber sticker on the rear panel.
SR470 Shutter Controller
