Rj45-To-Db9 Cable Requirements For Modem Connections; Reserving Ip Addresses In Dhcp Servers - LEGRAND Raritan PX3TS User Manual

Appendix J: Additional PX3TS Information

RJ45-to-DB9 Cable Requirements for Modem Connections

Reserving IP Addresses in DHCP Servers

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An RJ45-to-DB9 adapter/cable is required for connecting a modem to the
PX3TS device.
A third party RJ45-to-DB9 adapter/cable needs to meet the following
requirements.
•
RJ-45 to "DB9 male"
•
RX/TX and according control pins are NOT crossed
•
With the following pin assignments:
Pin signal
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RIR
Note: The RJ45-to-DB9 adapter/cable used for connecting modems CANNOT be
used to connect the PX3TS to a computer. See
Requirements for Computer Connections
PX3TS uses its serial number as the client identifier in the DHCP request.
Therefore, to successfully reserve an IP address for the PX3TS in a DHCP server,
use the PX3TS device's serial number as the unique ID instead of the MAC
address.
Since all network interfaces of the PX3TS can be simultaneously enabled and
configured with diverse static IP addresses, the client identifier of each network
interface is different. The main difference is the absence/presence of a suffix,
which is the interface name added to the end of the serial number. The table
below lists the client identifiers of all network interfaces.
Interface Client identifier
ETH1 serial number
DB9 pin No. RJ-45 pin No.
1 5
2 6
3 3
4 2
5 4
6 7
7 1
8 8
9 N/A
RJ45-to-DB9 Cable
(on page 25).