PSX-5300 Protection Switch
N+1 Interface Protection for DNX-11/88 and S-DNX
Introduction
The PSX-5300 Protection Switch adds redundant circuit protection, additional system alarming, and additional system cooling to DNX-11, DNX-88, and S-DNX systems. It provides N+1 redundancy on electrical interfaces including T1/E1, DS3, STS-1 and E3. With PSX-5300 protection in place, DNX systems switch to a standby module -- with minimal downtime and without user intervention -- should a primary module become non-operational. The standby module assumes all of the cross-connections and maps of the primary module at switchover. The result is increased service availability and fewer emergency truck rolls to maintain and restore network elements.
The 3 RU PSX-5300 stacks cleanly atop the DNX-11 chassis, providing a smooth, mated look to the overall system. Within its 11 slots, the PSX-5300 can simultaneously operate two independent broadband redundancy groups and one narrowband group.
Product Highlights
Circuit Protection for DNX-11, DNX-88, and S-DNX Systems – increases transmission network resiliency by protecting critical narrowband and broadband interfaces in DNX networks on an N+1 basis.
Additional System Alarming – includes front LED indicators on the modules, alarm LEDs on the DNX System Manager Controller, auto alarm indicators, and the DNX node summary screen available via Telnet or terminal connection.
Additional System Cooling – improves temperature control via an integral auto-sensing fan assembly. The three-speed cooling system automatically senses the temperature and changes fan speeds accordingly. Changes can also be controlled via menu (low, medium, or high settings over the 85F to 122F range), and there is an auto alarm notification if fan speeds drop.
The PSX-5300 has one common logic controller slot and two 48 VDC power supply slots. All of the redundant and primary modules are hot swappable (including power supply). The controller interfaces between the PSX-5300 and the DNX-11 System Manager Controller (SMC) IIA Module.
Note: Use of a DNX SMC-IIA is required with the PSX-5300 Protection Switch and use of redundant SMC-IIAs is recommended.
