DORAN MODEL 8000
OPERATING AND SERVICE MANUAL
MAN0002-42 of 33
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9. CONNECTIONS AND OTHER
9.1 RS232 SIMPLEX PORT
TB1-1 CTS (Clear To Send)
TB1-2 Signal Ground
TB1-3 TXD (Transmit)
TB1-4 Chassis Ground
9.2 20ma SIMPLEX PORT
TB2-1 -TXD
TB2-2 +TXD
Active Operation: Place jumper on JU2, JU3, JU4.
Passive Operation: Place jumper on JU5, JU6.
9.3 POWER SUPPLY CONNECTIONS
J1-1 No Connection
J1-2 Neutral, 115VAC (220VAC)
J1-3 Chassis Ground
J1-4 Hot, 115VAC (220VAC)
9.4 REMOTE SWITCHES
J3-1 PRINT
J3-2 Signal Ground
J3-3 TARE
J3-4 Signal Ground
Jumper Pads:
A TPB
B PRINT
C ZERO
D TARE
E CONV
Pins 1 and 3 are configured from the factory with the default connections shown above.
They can also be configured for TPB, ZERO, and CONV operation using jumper pads 1
and 3, which coincide with J3-1 and J3-2 respectively, and jumper pads A,B,C,D and E.
To reconfigure J3, first cut the trace between pads 1 and B, or pads 3 and D to disable
the default connection. Next, solder a jumper from the disabled pad 1 or 3 to the
desired pad A,B,C,D or E. For example, to configure J3-1 as CONV, cut the trace
between pads 1 and B, and solder a jumper between pads 1 and E.
9.5 BATTERY CONNECTIONS
J2-1 +Battery
J2-2 -Battery
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