Will this work with slc 500 processor?

Any null modem cable with at least simple handshaking (TX/RX crossed) will work with the SLC 500 and ML1400 over DF-1 protocol. Go shielded if you can. (I'm an Industrial Electrician who's worked with both of these PLCs.)

Is this a crossover cable or straight thru?

Your question is more inline with a Cat-5 cable, not a null modem cable.

Are the wires stranded or solid?

The wires in SCNM9FF are stranded. Matt, StarTech.com Support

You didn't answer the question on handshaking. Does it support full handshaking, partial handshaking, loopback handshaking or no hardware handshaking?

We apologize if we missed part of a previous question. The SCNM9FF is a simple Null Modem cable with all 9-pins connected through the cable. While it doesn't actively participate in handshaking of any kind due to there not being a chip in the cable, as long as both of your devices support the same protocols there should be no problems using whatever hand-shaking you need. Matt, StarTech.com Support

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🔗 Connect with confidence—your legacy devices deserve the best!

LEGACY MEETS MODERN - Perfect for professionals managing legacy hardware or serial printers in a modern office.
EXTENDED 10 FOOT REACH - Optimize your workspace with a cable long enough to bridge distant devices without clutter.
ROCK SOLID RELIABILITY - Backed by StarTech.com's lifetime warranty, ensuring your connection never drops.
PLUG AND PLAY SIMPLICITY - No drivers or software needed—just connect and transfer files instantly.
SEAMLESS SERIAL CONNECTIVITY - Effortlessly link devices with DB9 female connectors for legacy and modern serial ports.

The StarTech.com SCNM9FF is a 10-foot RS232 serial null modem cable featuring two DB9 female connectors, designed for reliable PC-to-PC file transfers and serial printer connections. Its durable construction is backed by a lifetime warranty, making it an essential tool for professionals needing dependable legacy device connectivity.

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Brand	StarTech
Product Dimensions	304.8 x 0.03 x 0.03 cm; 145.15 g
Batteries	1 A batteries required.
Item model number	SCNM9FF
Manufacturer	STARTECH.COM
Series	Serial Null Modem Cable
Color	Grey
Processor Count	1
Wireless Type	802.11bgn
Wattage	50 watts
Are Batteries Included	No
Lithium Battery Energy Content	2.6 British Thermal Units (BTUs)
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	0.5 Milligrams
Number Of Lithium Ion Cells	7
Number of Lithium Metal Cells	7
Item Weight	145 g

StarTech.com SCNM9FF 10 Inch RS232 Serial Null Modem Cable, Null Modem Cable, DB-9 (F) to DB-9 (F), 10 ft

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