Rice Lake MSI-9850 CellScale RF Digital Indicator - Operator Manual - Manual (Page 14)

Page 14 MSI-9850 RF Remote Indicator • User Guide
MSI-9850
HANDHELD RF REMOTE INDICATOR for
C
ELL
S
CALE
®
SERIAL PORTS
Comm Port Cables
The 9850 comes standard with one Comm Port Cable wired for RS-232 (MSI P/N 502513-0001) following the
AT standard for 9 pin serial cables (DCE). An unterminated cable is available (MSI P/N 10084) if you wish to
wire your own serial cable for RS-232 or RS-422 or RS-485. Comm Ports 1 and 2 are wired identically. Comm
Port 1 functions as an RS-232, 422, or 485 port. Comm Port 2 is RS-232 only, but provides an option for power-
ing a Bar Code Reader.
Comm Port Cable Color Code RS-232
Brown Transmit output from 9850, connect to receive of DTE.
Black Receive input to CellScale, connect to transmit of DTE.
Grey CTS Input to CellScale. Connect to RTS or RTR output of DTE.
White RTS/RTR output from CellScale. Connect to CTS input of DTE.
Blue Signal Ground
Pink On Comm 1, floating the Pink wire (insulated) sets up the RS-232 Mode. Grounding the Pink wire (to
the blue wire) sets up the RS422/485 mode. On Comm 2, the Pink wire is +5Vdc for powering peripheral
devices such as Bar Code Readers. This is the default function. The Pink wire can also be configured
as an auxiliary digital input or output as determined by the position of JP2 (Contact MSI for further
information).
Drain Wire – Connect to metal shell.
1
2
3
4
5
6
7
8
(NC) 9
Brown (TD)
Black (RD)
Blue (GND)
Grey (CTS)
White (RTS)
Jumper 1-6-4
COMM 1 or 2 RS-232 DCE
9-Pin Female ‘D’
Solder Cup View
Standard wiring for direct
9850 to Computer connection
Pink (Mode)
insulate w/ heat shrink
1
2
3
4
5
6
7
8
9 (NC)
Brown (TD)
Black (RD)
Blue (GND)
Grey (CTS)
White (RTS)
Jumper 1-6-4
COMM 1 or 2 RS-232 DTE
9-Pin Male ‘D’
Solder Cup View
Wiring for direct 9850 to
Printer/Scoreboard connection
Pink (Mode)
insulate w/ heat shrink
Comm Port 2 RS-232 w/ Bar Code Reader
Option
The 9850 can supply 5Vdc up to 0.5A for
powering a Bar Code Reader. The 5V supply is
fused and reverse polarity protected. Most Bar
Code Readers can be supplied with power from
Pin 9 of the D-9 connector. The 9850 in its default
configuration supplies 5Vdc on the Pink Wire
unless the function of JP2 is altered. JP2 (9850
Motherboard) must be in position 1-3.
1
2
3
4
5
6
7
8
9
Brown (TD)
Black (RD)
Blue (GND)
Grey (CTS)
White (RTS)
Jumper 1-6-4
COMM 2 RS-232 DTE
9-Pin Male ‘D’
Solder Cup View
Wiring for direct 9850 to Bar
Code Reader connection
Pink (+5V)
Requires 5V Bar Code
Reader with power con-
nected to Pin 9. 9850 JP2
positioned 1-3.
RS-422/485 Operation - Comm Port 1
RS-422 and RS-485 serial connections are used when long wire runs are necessary. The 485 spec covers cable
runs up to 4000’. 422 and 485 are differential transmissions and require twisted pair wiring to achieve common
and normal mode rejection. Although short runs of 422/485 cabling are often just two wires, a ground reference is
required. Usually the ground reference is connected through resistors to prevent ground differential current flow.
RS422/485 connections require a termination resistor to reduce reflections. See wiring diagrams for details. The
9850 features a software switchable termination resistor.
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