Microhard Systems IP-921 Operating Manual page 20

3.0 Hardware Features
The COM2 port is NOT an
Ethernet port.
DO NOT connect to COM2
pins other than
identified in Table 3A, and for
their described function.
The CFG button (and 'default'
IP address 192.168.1.39) are
ONLY used for the purpose of
upgrading firmware.
The 'default' IP address is
NOT available for accessing
the Web User Interface.
© Microhard Systems Inc.
The COM2 Port (DCE) is used for two purposes:


Pin Name No.
those
RxD
TxD
SG
CFG Button
Holding this button depressed while powering-up the IP Series will
boot the unit into FLASH FILE SYSTEM RECOVERY mode. The
default IP address for system recovery (only - not for normal access
to the unit) is static: 192.168.1.39.
(For more information on performing a firmware upgrade, see
Appendix B and Section 6.1.9.1.)
If the unit has been powered-up for some time (>1 minute),
depressing the CFG Button for 8 seconds will result in FACTORY
DEFAULTS being restored, including a static IP address of
192.168.1.254. This IP address is useable in a Web Browser for
accessing the Web User Interface.
CONFIDENTIAL
Text User Interface (local console port) at 115.2kbps
(using MHS-supplied BLACK RJ45-DE9 cable (P/N
MHS044000) and HyperTerminal (or equivalent).
User data (serial, RS-232, wired for RxD, TxD, and SG)
Description
2 Receive Data
3 Transmit Data
5 Signal Ground
Table 3A: COM2 Pin Description
IP9xx Series
In/
Out
O
I
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