DL1 access lock is mounted on the access door of the safe guarding area. It is designed to control the access to the protected area. DL1 is the single barrel access lock to suit tongue type actuator. DL2 is mounted on the access door of the safeguarding area. It is designed to control the access to the protected area. DL2 is the double barrel access lock to suit tongue type actuator. DL2 has 2 options, SA type and AA type. DL2-SA type is composed of one safety lock barrel and one access lock barrel. DL2-AA is composed of 2 access lock barrels.