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53
Data Device Corporation
www.ddc-web.com
BU-65743/65843/65863/65864
D-06/04-0
TABLE 71. MANDATORY ADDITIONAL CONNECTIONS & INTERFACE TO EXTERNAL TRANSCEIVER
(BGA’S ONLY) (CONT)
SIGNAL NAME
FOR USE WITH EXTERNAL TRANSCEIVERS
"TRANSCEIVERLESS"
DESIGN USES
INTERNAL
TRANSCEIVERS
BU-65843B3
BU-65864B3
BU-65843B8
BU-65863B8
BALL
NOTE: The BGA versions can be operated with either their internal transceivers or with external transceivers. When the devices are operated with their internal trans-
ceivers the customer must supply PCB traces that connect the device's "inputs to outputs" (within the correct column) as described in this table. For example, to operate
the BU-65843B8/BU-65863B8 with their internal transceivers, PCB traces must connect E7 to E8, C7 to C8, D7 to D8, etc..
Do NOT connect these two signals together. Connect TXDATA_OUT
(Digital manchester biphase transmit data output) directly to the corre-
sponding input of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver.
TXDATA_IN_A (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
C8
C7
TXDATA_OUT_A
(O)
B8
C8
Do NOT connect these two signals. Connect TXDATA_OUT (Digital
manchester biphase transmit data output) directly to the correspond-
ing input of a MIL-STD-1553 or MIL-STD-1773 (fiber optic) transceiver.
TXDATA_IN_A (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
C4
D7
TXDATA_OUT_A
(O)
C5
D8
Do NOT connect these two signals together. Connect RXDATA_IN
(Digital manchester biphase receive data input) directly to the corre-
sponding output of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver.
RXDATA_IN_A (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
D10
G8
RXDATA_OUT_A
(O)
E10
G7
Do NOT connect these two signals together. Connect RXDATA_IN
(Digital manchester biphase receive data input) directly to the corre-
sponding output of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver.
RXDATA_IN_A (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
E9
H8
RXDATA_OUT_A
(O)
F9
H7
Do NOT connect these two signals together. Connect TXINH_OUT
(Digital transmit inhibit output) to the corresponding input of external
MIL-STD-1553 transceiver. Asserted high to inhibit when not transmit-
ting on the respective bus.
TXINH_IN_B (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
T8
N7
TXINH_OUT_B
(O)
R8
N8
Do NOT connect these two signals together. Connect TXDATA_OUT
(Digital manchester biphase transmit data output) to the corresponding
input of a MIL-STD-1553 or MIL-STD-1773 (fiber optic) transceiver.
TXDATA_IN_B (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
R10
L7
TXDATA_OUT_B
(O)
P10
L8
Do NOT connect these two signals together. Connect TXDATA_OUT
(Digital manchester biphase transmit data output) directly to corre-
sponding inputs of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver.
TXDATA_IN_B (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
N12
M7
TXDATA_OUT_B
(O)
M12
M8
Do NOT connect these two signals together. Connect RXDATA_IN
(Digital manchester biphase receive data input) directly to the corre-
sponding output of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver
RXDATA_IN_B (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
M13
P10
RXDATA_OUT_B
(O)
M14
P9
Do NOT connect these two signals together. Connect RXDATA_IN
(Digital manchester biphase receive data input) directly to the corre-
sponding output of a MIL-STD-1553 or MIL-STD-1773 (fiber optic)
transceiver.
RXDATA_IN_B (I)
These two signals
MUST be directly
connected for normal
"Built-In" transceiver
operation.
N13
R10
RXDATA_OUT_B
(O)
N14
R9