48
1.15
BA-12: 12 S lo t Ba c kp la n e
The superseded BA-12 backplane uses Harwin data connectors for linking backplanes. The newer
revision BA-12 PLUS backplane uses Phoenix data connectors.
The BA-12 twelve slot backplane is designed to support any power supply, IO or communications
module in any slot position. A BA-12 is designed to be used with a PS-xx power supply and a CP-xx
processor module or linked to any other backplane to provide additional slots.
There are three (3) connectors at the far right of the backplane. There are two black 8-way Harwin
data connectors for linking backplanes together and there is one 6-way connector is for external power
(+5 V and +12 V DC) if a power supply module is not installed on the backplane.
This backplane is designed for surface mounting. Mounting brackets (2 pieces) are supplied for user
fitting. Mounting in a 19" rack may be achieved using the alternative MBR-3 rack mounting brackets.
102
DETAIL
174
176
7
10
444
482
464
36
Figure: BA-12 Dimensions (mm)
BA-12 Exte rn a l Co n n e c tio n s
J14 Power Socket
24 V
5 V
0 V
12 V
PCON Power Control
0 V
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CAUTION
: The 24 V and 12 V pins are shorted on early revision backplanes (prior to revision 1.3).
Early revision backplanes were designed for 24 V only.
J13 (in), J15 (out) Inter-rack Harwin Data Sockets
IO Link IO+
Comms link CM+
Signal Ground GND
IO link IO-
.
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.
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CM- Comms Link
GND Signal ground
CSR Processor Interrupt
PCON Power Control