3Com CoreBuilder 9000 Quick Start Manual page 8

8 20-Port 100BASE-FX (MT-RJ) Fast Ethernet Layer 2 Switching Module Quick Start Guide
Table 2 Mapping the 24-port Gigabit Ethernet Switch Fabric Module (SFM) and the 20-port Switching Module
to the 8-slot Chassis
Number of SFM
Chassis Slot Backplane Ports
No. Allocated to Slot
1 4; this module can
access up to 2
2 4; this module can
access up to 2
3 4; this module can
access up to 2
4 4; this module can
access up to 2
5 4; this module can
access up to 2
6 4; this module can
access up to 2
7 Reserved for an SFM Not applicable
8 Reserved for an SFM Not applicable
20-port Switching SFM Backplane Port
Module Backplane Numbers Assigned
Port Numbers to Chassis Slot
21 1
22 2
21 5
22 6
21 9
22 10
21 13
22 14
21 17
22 18
21 21
22 22
Not applicable
Not applicable
SFM LED Numbers
Assigned to Backplane
Port Numbers
1
2
3
4
5
6
7
8
9
10
11
12
Not applicable
Not applicable