3Com S26x, S27x, S24x installation manual Step Action Result/Description

Installing the DSU DIM

Install the DSU DIM Perform these steps to install the DSU DIM:

Step	Action	Result/Description
1	Install the DSU DIM in the DTE	The DSU option does not operate
	position only (see Figure 3-2).	if the DIM is installed in the DCE
		position.
2	Set the switches properly. Refer to
	“Switch Settings for Motherboard
	Switches 1 and 2.”
3	Plug the EIM into the backplane
	connector corresponding to the
	DIM port containing the DSU
	DIM (Port 1 or 2). Verify that the
	EIM is only connected to a port
	that has a DSU DIM installed.
4	Tighten the connector mounting
	screws to provide proper
	grounding and to ensure signal
	integrity.

Caution

Be sure that the telephone company plug is disconnected before you disconnect the EIM from the PathBuilder S24x, 26x, and 27x switch. Also, do not connect the telephone company plug to the EIM until you have connected the EIM to the PathBuilder S24x, 26x, and 27x switch.

Mise en Garde

Assurez-vous que la prise de téléphone est débranchée avant de déconnecter le module d’interface externe (EIM) du PathBuilder S24x, 26x, and 27x switch. Ne la rebranchez pas au EIM avant d’avoir reconnecté le module au PathBuilder S24x, 26x, and 27x switch.

Vorsicht

Das Telefonkabel muß ausgesteckt sein, bevor Sie die Verbindung zwischen dem

EIM und dem PathBuilder S24x, 26x, and 27x switch trennen. Schließen Sie das

Telefonkabel erst dann wieder in das EIM an, wenn Sie die Verbindung zwischen

EIM und PathBuilder S24x, 26x, and 27x switch wiederhergestellt haben.

PathBuilder S24x, 26x, and 27x Switch Hardware Installation 3-5