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R/F Laser Serial Model Pin-outs
F34, DB25 Null Modem Cable
These are the pin-outs for Cable F34, a DB25 Female, with pins 2 and 3
crossed, used for connection directly to a DB25 male host COM.
Mod 8 DB25F
Function Pin Pin
Frame Ground 1 1
Transmit Data 2 3
Receive Data 3 2
Signal Ground 4 7
F36, DB9 Straight Cable Pin-outs
These are the pin-outs for the DB9 Female Straight Cable, F36, used for
connection of the Base directly to a DB9 Male host COM.
Mod 8 DB9F
Function Pin Pin
Shell (Chassis Ground) 1 Shell
Transmit Data 2 2
Receive Data 3 3
Signal Ground 4 5
F45-1, Dual Port Serial Cable
If you want to install the Base between a serial terminal and a host computer,
(as with Unix, PICK, VM, etc.), you need the Dual Port Serial Port Cable,
F45-1. This cable has three connectors: 1) Host, 2) Terminal, and 3) Scanner.
This cable is configured so that the Terminal End connects directly into the
female main port of the Terminal; the female Host End connects into the
DB25 male cable end (a cable with pins 2 and 3 crossed is assumed to have
been connected between the host terminal).
Dual Port Cable’s
Host Connector
Pin Number
Dual Port Cable’s
Terminal Connector
Frame Ground 1 Frame Ground
Transmit Data 2 Receive Data
Receive Data 3 Transmit Data
RTS 4 RTS
CTS 5 CTS
DSR 6 DSR
Signal Ground 7 Signal Ground
DTR, CD 8,20 CD, DTR