3Com S24x, S27x, S26x installation manual Contents

Contents

Chapter 1. About the PathBuilder S24x, 26x, and 27x switch

Applications	1-3
Features and Protocols	1-7
Hardware Components	1-8
Enclosure	1-11
Motherboard	1-12
Back Panel	1-16
TI Dual Port Digital PBX Interface Card	1-17
E1 Dual Port Digital PBX Interface Card	1-20
DSPM/SM Card	1-23
DSPM Card with Analog E&M Interface	1-26
Setting Jumpers for DSPM Card with Analog E&M Interface	1-29
DSPM Card with FXS Analog Interface	1-32
DSPM Host Card with FXO Analog Interface	1-35
-48V Ringer/Power Supply Card and Enclosure	1-38
10BaseT Transceiver	1-41
Radio Frequency Interference Regulations	1-42
Telecommunications Regulations	1-43
FCC and Telephone Company Procedures and Requirements	1-45
FCC Information	1-46
Chapter 2. Preparation and Unpacking
Before Installing Your PathBuilder S24x, 26x, and 27x Switch	2-2
Unpacking	2-4
The PathBuilder S24x, 26x, and 27x Switch Rackmount Kit	2-5
Installing the PathBuilder S24x, 26x, and 27x Switch in an Equipment Rack	2-8
Chapter 3. PathBuilder S24x, 26x, and 27x Switch Hardware Installation
Setting DIP Switches	3-3
Installing the DSU DIM	3-4
Configuring the PathBuilder S24x, 26x, and 27x Switch for DSU Operation	3-7
DSU Input and Output Signaling	3-8
Troubleshooting DSU Installation	3-11
Installing DIMs	3-12
Installing SIMMs	3-14
Installing I/O Cards	3-16
Installing a T1 or E1 Dual Port Digital PBX Interface Card	3-17
Installing the T1/CSU Daughter Card	3-19
Cabling the PathBuilder S24x, 26x, and 27x Switch	3-22
Installing the Transceiver	3-23
Power-Up Diagnostics/Verification	3-24
Installing Software Options	3-26
Full Mesh Cluster Cabling	3-27

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