Grass Valley K2 Summit Storage Area Network v.7.1 - Manual (Page 71)

26 October 2009 K2 Storage Area Network Installation and Service Manual 71
Cabling the LS K2 Media Server
Make a direct connection between the serial ports of the two servers.
Take care to use the proper serial cable to interconnect redundant K2 Media
Servers. This cable supports the heartbeat mechanism whereby the servers
monitor each other’s health. It is a 9 pin serial cable, but it is not a standard
RS-232 null modem cable. The heartbeat cable is supplied with your system
(Grass Valley part number 174-8137-00). Refer to the K2 System Guide for
pinout details.