With IPHost Network Monitor you can run simple snmp requests against a HP device in your network.
serialParity
serial Parity
1.3.6.1.4.1.11.2.3.9.3.1.1.8
The parity generated and checked on each character sent and received through the serial port.
Back to hp-700rx MIB page.
IPHost Network monitor allows you to monitor serialParity on Hewlett Packard device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.