H7505-AA GS320/160 PSU 1610W/Communications is the primary communictions package for the Profes- sional, performing a wide range of asynchronous communications functions including multiple H7505-AA GS320/160 PSU 1610W terminal emulations, file conversion services, file transfers (usually with full error checking), and support for voice/data communications. PRO/Communications also provides H7505-AA GS320/160 PSU 1610W LAT Ethernet terminal support. Order Numbers H7505-AA GS320/160 PSU 1610W-A3 PRO/Communications for hard disk, license with warranty QBA05-H3 PRO/Communications for hard disk, update H7505-AA GS320/160 PSU 1610W-A3 PRO/Communications for diskette, license with warranty QBA45-H3 PRO/Communications for diskette, update