Multi-Tech Systems MT2456SMI22 manual SocketModem Placement, Qty Name Description

Appendix B – Product Approvals, Regulatory Design Considerations, Compliance

SocketModem Placement

This figure illustrates where to place the SocketModem on a typical application. It must be placed so that the analog end is near the phone jack.

0.035 [0.889] Drill with 0.060 [1.524] Pad

.0787 TYP

[2]

0.125 [3.175] Non-Plated

Analog to Digital Barrier (Shown for Reference Only)

1.732

[44]

.750

[19.05]

.145

[3.683]

.945

[24.003]

B or C

Note: The locking end of C should go in the Motherboard.

E (Digital) F

		G
D (Power and GND)		Note: The modem should be placed with the
	A	analog pins as close as possbile to the line jack.
D (Analog)

Figure B–3. SocketModem Placement

Note: The dimensions in this diagram are examples only.

See the mechanical drawing in Chapter 2 for true dimensions.

Key

Qty	Ref	Name	Description
1	A	Reference	Generic Motherboard
1	B (or C)	Recommended	RICHCO DLMSPM-4-01 Support Post (L=.250”)
1	C (or B)	Recommended	RICHCO MSPM-4-01 Support Post (L=.250”)
2	D	Recommended	Singatron Enterprises 1211-04-S-01-B)
2	E	Recommended	Singatron Enterprises 1211-10-S-01-B)
1	F	Reference	ModemModule Assembly
1	G	Reference	Line Jack

Note: The analog to digital barrier is really a safety isolation barrier between TNV and SELV.

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide 51