
40
Data Device Corporation
www.ddc-web.com
BU-6174X/6184X/6186X
F-10/02-300
INTERFACE TO MIL-STD-1553 BUS
FIGURE 15 illustrates the interface between the various versions
of the Enhanced Mini-ACE/-ACE series and a MIL-STD-1553
bus. Connections for both direct (short stub) and transformer
(long stub) coupling, as well as the nominal peak-to-peak voltage
levels at various points (when transmitting), are indicated in the
diagram.
FIGURE 15. ENHANCED MINIATURE ADVANCED COMMUNICATIONS
ENGINE INTERFACE TO MIL-STD-1553 BUS
Enhanced
Mini-ACE/-ACE
DATA
BUS
Z
0
55
55
TX/RX
(1:2.5)
11.2 Vpp
28 Vpp
1 FT MAX
Z
0
(1:1.79)
11.2 Vpp
20 Vpp
(1:1.41)
COUPLING
TRANSFORMER
0.75 Z
0
0.75 Z
0
LONG STUB
(TRANSFORMER
COUPLED)
20 FT MAX
28 Vpp
SHORT STUB
(DIRECT COUPLED)
OR
NOTES: 1. Z
0 =
70 TO 85 OHMS
ISOLATION
TRANSFORMER
ISOLATION
TRANSFORMER
7 Vpp
Enhanced
2. NOMINAL VOLTAGE
LEVELS SHOWN
Mini-ACE/-ACE