3Com MSR 30 Vcpm Module, Installing/Removing, Snde Card, Removing Snde card, Installing Snde card

		VCPM Module 231
	Table 174 Description of the LEDs on the SNDE
	LED	Description
	ESMx	Green: SNDE card is in the slot and is operating normally.
		Yellow: SNDE card is in the slot but cannot be accessed by the router.
	Note:
	x means the number of the slot the ESM LED is in.
Installing/Removing
	SNDE card should be installed on the main board and the ESM slot on the MSCA
SNDE Card	card of MSR 20/30 router. The board that provides ESM slots is referred to
	hereafter as mother board. Suppose the mother board is uninstalled and put on
	the workbench.
	Removing SNDE card
	Follow these steps to remove the SNDE card:
	Step 1: Remove the fastening screws on the SNDE card.
	Step 2: Remove the SNDE card from the mother board. Do not overexert when
	removing the SNDE card because the connector of the daughter board is still on
	the mother board.
	Step 3: If no SNDE card is to be installed, for an MSCA card, remove the four
	screws fastening the metal standoff on the daughter board and take the four
	metal standoffs. For other mother boards, remove the four metal standoffs.
	Installing SNDE card
	Follow these steps to install SNDE card:
	Step 1: Confirm the correct position of the SNDE card on the
	Step 2: For MSCA card, fasten the four metal standoffs which fasten and support
	SNDE card. For other mother boards, fasten the four metal standoffs on the
	mother board. Step 3: Install the SNDE card on the mother board and fasten it
	with four screws. During installation, align the two connectors under the daughter
	board to the connectors on the main board to avoid damage to the connectors.
c	CAUTION: You should connect a cable to the port with the correct mark.
	Misplugging is prone to impair the interface module and even damage the router.
VCPM Module
Introduction	VCPM, voice co-processing module, provides transmission channel between DSP
	strip and system memory for voice data, thus implementing TDM HW exchange
	for each PCM data voice channel.

VCPM module is a required module for voice communications of routers.