Cisco ASA 5520 - ASA5520-BUN-K9 AVAYA but not intended to be

but not intended to be directly comparable to those of traditional Direct Station Selection/Busy Lamp Field (DSS/BLF) modules

and a standard image

please see Cisco's datasheet

STACK-T1-1M 1M Stacking Cable for 3850 and 9300 Series with Warranty

2 AC PWR-C49M-1000AC Power Supplies with Warranty

Cisco ASA 5520 - ASA5520-BUN-K9 AVAYA but not intended to beCisco ASA 5520 Adaptive Security Appliance with Warranty The Cisco ASA 5500 Series adaptive security appliances are purpose built solutions that combine best of breed security and VPN services with the innovative Cisco Adaptive Identification and Mitigation (AIM) architecture. Designed as a key component of the Cisco Self Defending Network, the Cisco ASA 5500 Series provides proactive threat defense that stops attacks before they spread through the