Table 3 – 3Com 100BASE-FX User Manual
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10-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide
Table 3 Mapping the 24-port GEN SFM and the 10-port FEN Switching Module to the 16-slot Chassis
Chassis
Slot
Number
Number of SFM
Backplane Ports
Allocated to Slot
10-port Switching
Module Backplane
Port Numbers
SFM Backplane Port
Numbers Assigned to
Chassis Slot
SFM LED Numbers
Assigned to Backplane
Port Numbers
1
2
11
12
1
2
1
2
2
2
11
12
3
4
3
4
3
2
11
12
5
6
5
6
4
2
11
12
7
8
7
8
5
2
11
12
9
10
9
10
6
2
11
12
11
12
11
12
7
2
11
12
13
14
13
14
8
Reserved for an SFM
Not applicable
Not applicable
Not applicable
9
Reserved for an SFM
Not applicable
Not applicable
Not applicable
10
2
11
12
15
16
15
16
11
2
11
12
17
18
17
18
12
2
11
12
19
20
19
20
13
1
11
21
21
14
1
11
22
22
15
1
11
23
23
16
1
11
24
24
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