[4] The train locomotives are marked "Great Wall" (Chinese: 长城号; pinyin: Chángchéng Hào).

Line S2 uses the NDJ3 diesel multiple unit marked "Great Wall" (Chinese: 长城号; pinyin: Chángchéng Hào) in a seven-car push-pull configuration (L+7T+L).

On-board facilities include air-conditioning and heating, toilets, hot-water dispensers and a cafe-bar selling tea, coffee, soft drinks, beer and snacks.

Passengers can pay the fare by Beijing Yikatong farecard, other farecards of China T-Union standard, QR code generated by Yitongxing mobile app, or purchasing ticket in station ticket offices by cash.

Passengers have to show the ticket or tap the farecard or scan the QR code while getting in and leaving the stations.