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IMS IMSAI 8080 User Manual page 445

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NOTE
If the Current Loop Driver is not used, it
should be jumpered to the Ground signal at
pin 9 of the OUTPUT JUMPER AREA.
Table 6 Output Jumper Area Signal Definitions
PIN#
SIGNAL NAME
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CRO
CR1
CR2
CR3
TDATA
OTTLl
OTTL2
GND
DEIA1
DEIA2
DEIA3
DEIA4
OC1
OC2
OC3
CLO
DESCRIPTION
Control Register Bit 0
Control Register Bit 1
Control Register Bit 2
Control Register Bit 3
SIO UART Serial Transmit Data
TTL Direct Output 1
TTL Direct Output 1
Ground
EIA Transmitter Number 1
ElA Transmitter Number 2
EIA Transmitter Number 3
EIA Transmitter Number 4
High Voltage (40V) Power
(J4-23)
High Voltage (40V) Power
(J4-4)
High Voltage (40V) Power
(J4-19)
Current Loop Output (+cn J 4- 20 , -on J4-;
i i A V
User Guide
(J4-•10)
(J4- ■2)
(40MA) Driver.. ]
(4 0MA) Driver i
(40MA) Driver !
2 - 1 5

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