38
Data Device Corporation
www.ddc-web.com
BU-61582
G-08/02-250
BU-61582X1
BU-61583X1
DATA BUS
Z0 (70 to 85
55
55
1.4:1
39 VPP
28 VPP
1 FT MAX
2:1
39 VPP
20 VPP
1
8
3
4
1:1.4
COUPLING
TRANSFORMER
ISOLATION
TRANSFORMER
ISOLATION
TRANSFORMER
0.75 Z0
TRANSFORMER COUPLED (LONG STUB)
20 FT MAX
28 VPP
DIRECT COUPLED (SHORT STUB)
OR
COUPLING
TRANSFORMER
ISOLATION
TRANSFORMER
ISOLATION
TRANSFORMER
DIRECT COUPLED (SHORT STUB)
BU-61582X2
BU-61583X2
55
55
1:0.83
33 VPP
28 VPP
1 FT MAX
1:0.6
33 VPP
20 VPP
1
8
3
4
1:1.4
0.75 Z0
TRANSFORMER COUPLED (LONG STUB)
20 FT MAX
28 VPP
OR
COUPLING
TRANSFORMER
ISOLATION
TRANSFORMER
ISOLATION
TRANSFORMER
DIRECT COUPLED (SHORT STUB)
BU-61582X3
BU-61583X3
BU-61582X6
55
55
1:2.5
11.6VPP
28 VPP
1 FT MAX
1:1.79
11.6VPP
20 VPP
1
8
3
4
1:1.4
0.75 Z0
TRANSFORMER COUPLED (LONG STUB)
20 FT MAX
28 VPP
OR
Z0
+5V
-15V
)
+5V
-12V
+5V
(70 to 85
)
FIGURE 18. INTERFACE TO A 1553 BUS