3Com S26x Setting Jumpers for Dspm Card with Analog E&M Interface, Default Jumper, Settings, Com

Hardware Components

Setting Jumpers for DSPM Card with Analog E&M Interface

Introduction	The DSPM/EM card has a total of 12 jumpers that you can set for various
	applications if required:
	• Ten jumpers for two- or four-wire operation
	• Two jumpers for MVIP clock termination (not used at present)
Default Jumper
	The DSPM/EM card ships from the factory with the ten jumpers for two- or
Settings	four-wire operation set to four-wire.

Jumper Definitions Jumpers J11 through J15 are associated with Port 1.

Jumper	4-Wire/600	2-Wire/600	2-Wire/UK	2-Wire/
Number			Complex	Germany
				Complex
J11	600	600	COM	COM
J12	4W	2W	2W	2W
J13	Don’t Care	Don’t Care	UK	Germany
	(Default	(Default
	Germany)	Germany)
J14	600	600	COM	COM
J15	4W (removed)	2W (installed)	2W (installed)	2W
				(installed)

Jumpers J21 through J25 are associated with Port 2.

Jumper	4-Wire/600	2-Wire/600	2-Wire/UK	2-Wire/
Number			Complex	Germany
				Complex
J21	600	600	COM	COM
J22	4W	2W	2W	2W
J23	Don’t Care	Don’t Care	UK	Germany
	(Default	(Default
	Germany)	Germany)
J24	600	600	COM	COM
J25	4W (removed)	2W (installed)	2W (installed)	2W
				(installed)

About the PathBuilder S24x, 26x, and 27x switch 1-29