1. Ubukhulu obuncane, kulula ukusebenza
2. Yifanele konke ukumelana kwezinzwa zokumelana
3. Ungaxhunyaniswa nezinzwa eziyi-1 ~ 8
4. I-WD200-4 ingaxhunyaniswa nezinzwa ezine okungenani
5. I-WD200-8 ingaxhunyaniswa nezinzwa eziyisishiyagalombili okungenani
6. I-RS485 noma i-RS232 Port Port