Added Niagara 4248-6C (#3504)

* Added Niagara 4248-6C

* Renamed Niagara Networks to Niagara

* Fixed typoe

* Fixed interface types

* Renamed interfaces and added power supply module

* Added Exterme Ethernet nomeclature

* Fixed interface types

---------

Co-authored-by: Harry <Harry@cadby.co.uk>

device-types/Niagara/4248-6C.yaml

@@ -0,0 +1,131 @@
+---
+manufacturer: Niagara
+model: High-Density Open Visibility Packet Broker
+slug: niagara-packet-broker-4248-6c
+part_number: 4248-6C
+u_height: 1
+is_full_depth: true
+airflow: front-to-rear
+weight: 11.4
+weight_unit: kg
+comments: '[Packet Broker Datasheet](https://info.niagaranetworks.com/hubfs/%E2%80%8F%E2%80%8F4248-6C%20Datasheet.pdf)'
+console-ports:
+  - name: Console
+    type: rj-45
+interfaces:
+  - name: ExtremeEthernet0/1
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/2
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/3
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/4
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/5
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/6
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/7
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/8
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/9
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/10
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/11
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/12
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/13
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/14
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/15
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/16
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/17
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/18
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/19
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/20
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/21
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/22
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/23
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/24
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/25
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/26
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/27
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/28
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/29
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/30
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/31
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/32
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/33
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/34
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/35
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/36
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/37
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/38
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/39
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/40
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/41
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/42
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/43
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/44
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/45
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/46
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/47
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/48
+    type: 25gbase-x-sfp28
+  - name: ExtremeEthernet0/49
+    type: 100gbase-x-qsfp28
+  - name: ExtremeEthernet0/50
+    type: 100gbase-x-qsfp28
+  - name: ExtremeEthernet0/51
+    type: 100gbase-x-qsfp28
+  - name: ExtremeEthernet0/52
+    type: 100gbase-x-qsfp28
+  - name: ExtremeEthernet0/53
+    type: 100gbase-x-qsfp28
+  - name: ExtremeEthernet0/54
+    type: 100gbase-x-qsfp28
+  - name: Management
+    type: 1000base-t
+    mgmt_only: true
+module-bays:
+  - name: PS A
+    position: A
+  - name: PS B
+    position: B

module-types/Niagara/PSU-575-AC.yaml

@@ -0,0 +1,9 @@
+---
+manufacturer: Niagara
+model: PSU-575-AC
+comments: 575W PSU for the 4248-6C packet broker
+power-ports:
+  - name: PSU{module}
+    type: iec-60320-c14
+    allocated_draw: 332
+    maximum_draw: 575