2711-NC14 — RS-232 Operating and Programming Cable, 9-Pin to 9-Pin, 10 m

The 2711-NC14 is a 10-meter RS-232 serial cable with 9-pin D-shell connectors at both ends, used for connecting a programming computer to legacy PanelView and PanelView Plus terminals for application transfer, configuration, and operating communication. It's a fixed-pinout point-to-point cable — no electronics, no signal conversion — built for the specific wiring scheme that PanelView serial ports expect.

Specifications

Parameter	Value
Part Number	2711-NC14
Cable Type	RS-232 operating/programming cable
Connectors	9-pin D-shell to 9-pin D-shell
Length	10 m (32.7 ft)
Compatible Terminals	PanelView 1000/1000e and compatible PanelView Plus models with 9-pin RS-232 port
Connector Retention	Captive screws at both ends
Protocol Carried	RS-232 (DF1 or terminal-specific operating protocol)

RS-232 in Legacy HMI Programming and Operation

Before USB and Ethernet became standard on operator terminals, RS-232 was the universal connection method for transferring applications, configuring terminal settings, and in some architectures, the operating connection between the terminal and its host controller. The 2711-NC14's 10 m length is the long-cable variant in its family — useful when the programming PC or development location is some distance from the panel where the terminal is installed, avoiding the need to bring the terminal to the PC or vice versa.

The cable's role splits into two use cases depending on the installation: as a programming/upload-download cable connecting a PC running configuration software to transfer applications to and from the terminal, or as an operating cable connecting the terminal to its host controller's serial port for runtime communication (DF1 or DH-485 depending on the controller). Which role applies depends on which port on the terminal the cable connects to — verify against the terminal's port labeling and the system's wiring documentation before assuming the cable's function in an unfamiliar installation.

Cable Handling and Connection Notes

The captive screws at each connector should be tightened by hand after connecting — this prevents the cable from working loose from vibration, which is a common cause of intermittent communication during a long-running configuration or transfer session.
At 10 m, voltage levels on RS-232 signals are near the practical limit for reliable communication at higher baud rates. If transfer errors or dropped connections occur at this length, a lower baud rate setting in the programming software often resolves it.
Route the cable away from AC power conductors and motor drive output cables where possible — RS-232's relatively low signal voltage swing makes it more susceptible to induced noise than higher-voltage interfaces.
Verify the cable is connected to the correct port on both the terminal and the PC — many older PCs and terminals have multiple 9-pin connectors for different purposes, and connecting to the wrong port produces no communication without any clear error indication.

FAQ

Q: Can the 2711-NC14 be used with current-generation PanelView Plus 7 terminals?

PanelView Plus 7 terminals use Ethernet and USB as their primary interfaces. The 2711-NC14 is intended for legacy PanelView and earlier PanelView Plus models with a 9-pin RS-232 port. Verify the specific terminal model's port configuration before assuming compatibility.

Q: Does this cable require a driver or special software to function?

No. It's a passive serial cable with a fixed pin wiring — no driver installation required. The PC's serial port (or a USB-to-serial adapter providing a virtual COM port) communicates directly through the cable using the programming software's standard RS-232 communication settings.

Q: Is the 5 m 2711-NC13 electrically identical except for length?

Yes, the 2711-NC13 and 2711-NC14 share the same pin wiring and connector types — they differ only in cable length (5 m versus 10 m). Choose based on the physical distance needed between the PC and the terminal.

Q: Can this cable be extended with a standard 9-pin extension cable for distances beyond 10 m?

Extending RS-232 cables beyond their rated length risks signal degradation, particularly at higher baud rates. If a longer run is needed, reducing the baud rate in the programming software may allow reliable communication over the extended length, but a purpose-built longer cable or a different communication method (such as Ethernet, if the terminal supports it) is the more reliable solution.

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