Juniper SRX3K-CRM-B
Juniper SRX3K-CRM-B, COUCASNBAA, 710-32473, Clustering Module for SRX3400 and SRX3600
The SRX Clustering Module is a card that you can install in the SRX3400 and SRX3600 Services Gateway to enable the dual control link feature for chassis cluster supported in Junos OS Release 10.2 and later. You install the SCM in the RE1 slot on the rear panel of the services gateway.