Invalid Fiber Couplers

Fiber Couplers are used to connect Fiber Inner Ducts in a Fiber Branch Enclosure. You can connect Fiber Inner Ducts using the Fiber Feature Editor by selecting the two Fiber Inner Ducts and choosing the ‘Couple’-icon :

Connecting Fiber Inner Ducts

Connecting Fiber Inner Ducts

This will connect the 2 selected Fiber Inner ducts using a Fiber Coupler. After coupling the Fiber Inner Ducts the picture looks like this :

Connected Inner Ducts

Connected Inner Ducts

The two selected Fiber Inner Ducts are now connected via a Fiber Coupler which you can see in Feature Explorer if you go to the connected features of one of the Fiber Inner Ducts :

Explorer feature in Fiber Feature Editor

Explore feature in Fiber Feature Editor

Explored feature in Feature Editor

Explored feature in Feature Editor

Fiber Couplers are only allowed to be connected to Fiber Inner Ducts and they can only exist in the system when they have a connection. The following Fiber Couplers are invalid :

  • Fiber Couplers with more then 2 connections
  • Fiber Couplers with a single connection
  • Fiber Couplers without a connection
  • Fiber Couplers connected to other features then Fiber Inner Ducts

The following AdHoc-query will display all Fiber Couplers with invalid connections :

with T as
(      
select 	4300 		g3e_fno
	,	a.g3e_fid
	,	4301 		g3e_cno
	,	1 			g3e_cid	
	,	count(*) 	cnt	 
	from gc_ne_connect a
		inner join gc_ne_connect b on ( (b.node1_id = a.node1_id) or ( b.node2_id = a.node1_id) )
			and b.g3e_fno != 4300
	where a.g3e_fno = 4300 
		and a.node1_id != 0 
		and a.node2_id != 0
		group by a.g3e_fid
UNION
select 4300	g3e_fno
	,	g3e_fid
    ,	4301 g3e_cno
    ,	1	g3e_cid
    , 0 cnd
    from gc_ne_connect
    where g3e_fno = 4300 
    and node1_id = 0 and node2_id = 0
)select g3e_fno
	,	g3e_fid
    ,	g3e_cno
    ,	g3e_cid
    ,	cnt from t 
    where cnt != 2
    order by cnt desc

The result looks like this :

invalid Fiber Couplers

invalid Fiber Couplers

Hope this helps, Stephan