Siemens ULYSCOM Communication Module. Accessory Type: Compact Holder. For Use With: 7KM2111-1BA00-3AA0, 7KM2112-0BA00-3AA0, 7KM3133- 0BA00-3AA0, 7KM4211-1BA00-3AA0, 7KM4212-0BA00-3AA0. MPN: 7KM9900-0GA00-0AA0