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INTERCONNECTIONS
All input, output, options and power connections to the 758C are made at the rear panel of the
indicator. Connections for the Load Cell input and the Serial I/0 are made using 9-pin "D"
shaped connectors. The Height Rod option (Detecto DHR, Digital Height Rod) and Ethernet
(758-IP) options use snap-in modular connectors. The USB port is a device (or upstream) port
using an industry standard "B" connector. The optional 12VDC wall plug-in UL/CSA listed AC
power adapter is connected using a power jack. Refer to Figure No. 1.
Optional AC Power Adapter
To power the 758C using the optional 12VDC wall plug-in AC power adapter, connect the plug
from the adapter into the power jack on the back of the indicator and then plug the power
adapter into the proper electrical outlet. Refer to Figure No. 1. On models requiring 220 VAC,
it is the customer's responsibility to obtain the correct power adapter plug.
Height Rod – Detecto DHR (Digital Height Rod) Option
The optional Detecto DHR (Digital Height Rod) connects to the 758C by a snap-in modular
connector socket. Insert the modular connector of the DHR cable into the socket on the rear of
the display it locks in place (a clicking sound will be heard when it is locked in place).
Load Cell
The load cell cable connects to the 758C via a 9-pin "D" connector on
the rear panel of the indicator. Figure No. 2 shows the pin
identification for the load cell connector. Make certain that the pins
are correctly identified before soldering a wire to them. Use the
connector retaining screws to hold the load cell cable connector
securely to the rear panel.
PIN NO.
FUNCTION
1
+EXCITATION
2
-SIGNAL
3
No Connection
4
No Connection
5
SHIELD
MATING CONNECTOR INFORMATION
DESCRIPTION
CONNECTOR
CONNECTOR SHELL C883010001
USB
The USB port is a device (or upstream) port and uses readily
available cables with the industry standard "B" connector.
USB, Serial and Ethernet Interface Specifications
The 758C USB, Serial and optional Ethernet interfaces can be configured during the setup and
calibration procedure or during the setup review operation. Using either method, it is possible
to select the operation of the interfaces.
The interfaces may be connected to a computer for transmission of weight and associated
data to a PC-based EMR (electronic medical record) software program. The data can be
transmitted on demand (pressing the PRINT/ENTER key) or on receipt of a command from the
computer. Note that only the serial interface can be connected to a printer to record weight
and associated data.
INSTALLATION, CONT.
PIN NO.
6
-EXCITATION
7
+SIGNAL
8
No Connection
9
No Connection
ITEM
Cardinal Part #
DE9-P
6610-2379
6610-1131
8555-M210-O1 Rev R 758C Owner's
FUNCTION
Figure No. 2
5
9
4
8
3
7
2
6
1
5
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