i cable Nurse Call. Normally open alarm output of GE Healthcare Carestation or Carescape R860 ventilator to the input at the headwall jack which transmits device alarms to the central nurses station. Set includes 2 pieces: 1) DB15 to 1/4″ 2 circuit right angle phone plug. 10 ft length. 2) Required GE isolation cable #2070436-001. This device alarm cable is compatible with the Maguire Device Alarm Input Multiplier, which expands the headwall jack to allow simultaneous monitoring of up to three devices.