Serial Com Port - Compaq Netelligent 3024 User Manual

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6-2 Using the Serial COM Port
Serial
Port
MEDIA EXPANSION
Figure 6-1. Remote Link Connections via Modems
Figure 6-2 shows a connection to a PC using a null modem, which is required
to cross-connect the RS-232 signals between the repeater and the PC.
Modem
Female DB-9
Collision 1
Mode 1
1 2 3 4 5 6 7
PORT
SEGMENT 1
Modem
Collision 3
Collision 2
Mode 2 Mode 3
8 9 10 11 12 13 14 15 16 17 18
SEGMENT 2
Mode 1 - BACKPLANE PORT/SEGMENT
Mode 2 - LINK DISABLE CONFIGURATION
Mode 3 - PARTITION
19 20 21 22 23 24
UPLINK
SEGMENT 3 PORT 24