EF Core multiple navigation properties to same table with fluent api

You can use one of these

1. FluentApi

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder.Entity<Device>()
        .HasMany(a => a.PersonEnterExitEnDevice)
        .WithOne(a => a.EnDevice)
        .HasForeignKey(a => a.EnDeviceId).OnDelete(DeleteBehavior.Restrict); 

    modelBuilder.Entity<Device>()
        .HasMany(a => a.PersonEnterExitExDevice)
        .WithOne(a => a.ExDevice)
        .HasForeignKey(a => a.ExDeviceId).OnDelete(DeleteBehavior.Restrict); 
}

2. Metadata. you can use InverseProperty to define the relationships.

namespace DesTech.Core.Entities
{
    public class PersonEnterExit : BaseEntity
    {
        public int Type { get; set; }
        public int? PersonId { get; set; }
        public DateTime? NoEnterTime { get; set; }
        public int? EnDeviceId { get; set; }
        public DateTime? EnVerifyDate { get; set; }
        public string EnPlate { get; set; }
        public int? ExDeviceId { get; set; }
        public DateTime? ExVerifyDate { get; set; }
        [InverseProperty("PersonEnterExitEnDevice")]
        public virtual Device EnDevice { get; set; }
        [InverseProperty("PersonEnterExitExDevice")]
        public virtual Device ExDevice { get; set; }
        public virtual Person Person { get; set; }

    }
}

namespace DesTech.Core.Entities
{
    public class Device : BaseEntity
    {
        public bool? IsConnected { get; set; }
        public string Name { get; set; }
        public string Ip { get; set; }
        public int Port { get; set; }
        public DateTime? LastConnectTime { get; set; }
        public DateTime? ChangeClockBatteryWarningTime { get; set; }
        public bool HasFp { get; set; }

        public virtual Location Location { get; set; }
        public virtual ICollection<DeviceOptLog> DeviceOptLog { get; set; }
        public virtual ICollection<DevicePerson> DevicePerson { get; set; }
        public virtual ICollection<DeviceTimeZone> DeviceTimeZone { get; set; }
        [InverseProperty("EnDevice")]
        public virtual ICollection<PersonEnterExit> PersonEnterExitEnDevice { get; set; }
        [InverseProperty("ExDevice")]
        public virtual ICollection<PersonEnterExit> PersonEnterExitExDevice { get; set; }
        public virtual ICollection<PersonPassLog> PersonPassLog { get; set; }
    }
}