These are the signal wires for EL3 and EL5 signals (beyond the road bridge at the east end) which are the Down Main and Down loop signals. The wires were relocated away from the platform sides due to the upcoming platform lengthening works. At present only the two distant signals plus EL15 are colour light, all others are semaphores but will be removed in October when the control of Nairn, Forres and Elgin moves to Inverness SC.
The box will be demolished immediately as the loop is also being extended in both directions and the road crossing will become an Obstacle Detector type. The Tyers token machines will also disappear from the line- currently two sections (Nairn- Forres and Forres- Elgin)