# 205 Series [](https://bookstack.cracrayol.org/uploads/images/gallery/2024-09/AOK4clWOeR5oPNjk-nanbu-line-205kei-rapid.JPG)(By toshinori baba - [CC0](http://creativecommons.org/publicdomain/zero/1.0/deed.en)) ### Introducing The 205 series (205系, 205-kei) (205けいでんしゃ/205 keidensha or 205系電車) is a type of electric multiple unit (EMU), used for commuter and suburban services, introduced in 1985 by Japan National Railways (JNR), and currently operated by East Japan Railway Company (JR East) in Greater Tokyo, West Japan Railway Company (JR West) in Keihanshin, and KAI Commuter in Indonesia. This model appeared in 1985, at the end of the JNR period, as an energy-efficient commuter train to replace the 103 and 201 series, and even after the division and privatization of JNR, JR East and JR West continued to increase the number of cars via orders, and eventually 1,461 cars were produced. ([Wikipedia](https://en.wikipedia.org/wiki/205_series)) ### Console detail #### Senseki line (ATS-Ps + ATACS)  On the far left, we have the brake levels, with a yellow line on level 6 to indicate the level to apply when stopping and indicator for emergency brake in red (非常). Then, at the top, we have the [ATS-Ps](https://bookstack.cracrayol.org/link/36#bkmrk-ats-ps) display. Below, on the left, 2 lights (unused) to indicate whether the next station is a stop (on the left - 停車) or just a passage (on the right - 通過). Still below, we have the brake pressure level (black arrow) and the compressed air reservoir (red arrow). Then we have the speed dial with the green [ATACS](https://bookstack.cracrayol.org/link/36#bkmrk-atacs) speed limit indicators (and the light above telling us to brake if the limit is dropping, if it's on). Then comes the lock indicator and the pocket watch. Finally, we have various indicators for [ATACS](https://bookstack.cracrayol.org/link/36#bkmrk-atacs) and ATS:
- First column: 1. ATACS failure (ATACS故障) 2. ATACS release (ATACS開放) 3. ATACS normal (ATACS常用) 4. ATACS emergency (ATACS非常) 5. ATACS 6. ATACS power supply (ATACS電源) 7. Train stop operation (停通防止動作) 8. Emergency operation (非常運転) 9. Pattern reduction (パターン低減) 10. Reverse detection (後退検知) | - Second column: 1. Safety Brakes (直通予備) 2. Snow resistant brakes (耐雪ブレーキ) 3. Emergency short-circuit (非常短絡) 4. 3-phases (三相) 5. ATS in progress (ATS動作) 6. ATS powr supply (ATS電源) 7. 1 8. 2 9. ID power failure (ID電源故障) |