3Com S26x, S27x, S24x installation manual Dspm Card with Analog E&M Interface

Hardware Components

DSPM Card with Analog E&M Interface

Introduction	The DSPM/E&M card supports two analog E&M interface voice channels.
Description
	The Analog DSPM/E&M card allows the PathBuilder S24x, 26x, and 27x switch to
	support up to two (2) voice/fax channels per card. Each E&M card occupies one ISA
	slot in the PathBuilder S24x, 26x, and 27x switch. The PathBuilder S24x, 26x, and
	27x switch E&M card supports both two- and four-wire interfaces.
Function
	The DSPM/E&M card allows a PBX to attach to one of its two connectors.
-48V Ringer/ Power
	The DSPM/E&M card requires installation of a -48V ringer/power supply card and
Supply Card	enclosure into the PathBuilder S24x, 26x, and 27x switch node to support interface
Required	types II, III, and V.
	Interface type I does not require a -48V ringer/power supply.
Cables Required
	The DSPM/E&M interface card requires a -48V ringer/power supply cable to
	support interface types II, III, and V.
	The -48V ringer/power supply cable connects up to six DSPM cards to the power
	supply. The cable ships with the -48V ringer/power supply.
	For details on how to cable the DSPM card to the -48V ringer/power supply, refer to
	the “-48V Ringer/Power Supply Card and Enclosure” section on page 1-53.
When You Receive
	When you receive a DSPM/E&M card, do the following:
the Card
	Step	Action

1Remove it from the packing material.

2Inventory the contents of the shipping container.

Note

No cables are shipped with the DSPM/E&M card. The appropriate

6-position power cable and status cable ship with the -48V ringer/power supply card that must be used in conjunction with the DSPM/E&M card.

3Set jumpers as required.

4Power off the node.

5Install the card into the PathBuilder S24x, 26x, and 27x switch node.

6Cable the card to the -48V ringer/power supply as required.

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