
Introduction
6 Infoblox Installation Guide
Connector Pin Assignments
The Infoblox-250 appliance has four types of ports on the front panel:
•USB port (reserved for future use)
•Male DB-9 console port
•RJ-45 10Base-T/100Base-T/1000Base-T Ethernet ports
Figure 3 shows the DB-9 and RJ-45 connector pin assignments. The DB-9 pin assignments follow the EIA232
standard. To make a serial connection from your management system to the console port, you can use the RJ-45
rollover cable and two female RJ-45-to-female DB-9 adapters that ship with the device, or a female DB-9-to-female
DB-9 null modem cable. The RJ-45 pin assignments follow IEEE 802.3 specifications. All Infoblox Ethernet ports are
auto-sensing and automatically adjust to standard straight-through and cross-over Ethernet cables.
10Base-T Ethernet and 100Base-T fast Ethernet use the same two pairs of wires. The twisted pair of wires
connecting to pins 1 and 2 transmit data, and the twisted pair connecting to pins 3 and 6 receive data. For
1000Base-T connections, all four twisted-pair wires are used for bidirectional traffic.
Figure 3 Connector Pin Assignments
21 345
6789
21346578
78653421
DB-9 Connector Pin Assignments
RJ-45 Connector Pin Assignments
Pin 10Base-T
100Base-T
Signal
1000Base-T
Signal
T568A
Straight-Through
Wire Color
T568B
Straight-Through
Wire Color
1Transmit+ BI_DA+ White/Green White/Orange
2Transmit- BI_DA- Green Orange
3Receive+ BI_DB+ White/Orange White/Green
4 (not used) BI_DC+ Blue Blue
5 (not used) BI_DC- White/Blue White/Blue
6Receive- BI_DB- Orange Green
7 (not used) BI_DD+ White/Brown White/Brown
8 (not used) BI_DD- Brown Brown
Male DB-9 Console Port
RJ-45 Ethernet Ports
Pin Signal Direction
1 (not used)
2Receive Input
3Transmit Output
4DTEReady Output
5 Ground —
6 DCE Ready Input
7 RTS (Request to Send) Output
8 CTS (Clear to Send) Input
9 (not used)
Legend: BI_D = bidirectional; A, B, C, D = wire pairings
(Looking into the console
port on an Infoblox device)
(Looking into RJ-45
Ethernet ports on an
Infoblox device)