General Information
ix
Electrical and Mechanical
Shutter Outputs
Voltages
+
12 VDC,
+
4.5 VDC
Current limits
1.20 A max (12 VDC)
per channel
0.25 A max (4.5 VDC)
Signal lines
Serial TX, Serial RX, logic-level control
Connector type
Mechanically compatible
with 6-pin IEEE 1394 cables.
Cable length
10 ft (3 m) max
Cable shield
Grounded or floating (internal jumpers)
I
/
O ports
Level inputs
4 TTL compatible rear panel input BNC connectors,
internally pulled up to
+
3.3 VDC through 100 k
Ω
.
Auxiliary I
/
O
1 rear-panel BNC connector;
TTL level, multi-purpose.
Alarm output
1 rear-panel TTL output BNC connector
Interfaces
Shutter outputs
4 rear-panel shutter connectors
Host interface
RS-232; DB–9 (female) DCE
GPIB
Ethernet; 10
/
100Base-T
Operating
Temperature
0
◦
C to 40
◦
C, non-condensing
Power
90 VAC to 260 VAC, 47 Hz to 63 Hz
85 W max
Physical
Weight
7 lbs
Dimensions
8
.
25
W
×
4
H
×
11
D
SR474 Four Channel Shutter Driver
