7-3Using one pair twisted #24 AWG (0.5mm) or #26 AWG (0.4mm) jumper wire, cross-connect eachadd-on module (AOM) to a DLI port (Figure 7-6a or 7-6b) or plug into the keyset daughterboardof your choice (see Chapter 9). If an AOM is to operate as a stand-alone unit, there is nothingelse required other than assigning soft keys. When an AOM is to be used with a station, it mustbe assigned to that station in MMC 209. Add-on modules can be assigned to any keyset or sin-gle line telephone.CAUTION: To reduce the risk of fire, use only #26 AWG (0.4mm) or largertelecommunication line cord.Single Line TelephonesUsing one pair twisted #24 AWG (0.5mm) or #26 AWG (0.4mm) jumper wire, cross-connect eachsingle line telephone (SLT) to the SLI, 8SLI, 8MWSLI, 16SLI or 16MWSLI port of your choice(Figures 7-7a to 7-7d) or into the keyset daughterboard of your choice (see Chapter 9).CAUTION: To reduce the risk of fire, use only #26 AWG (0.4mm) or larger telecommunicationline cord.SLTs with message waiting lamps must be connected to the 8MWSLI or 16MWSLI cardDoor Phone and Door Lock ReleaseUsing one pair twisted #24 AWG (0.5mm) or #26 AWG (0.4mm) jumper wire, cross-connect eachdoor phone interface module (DPIM) to the DLI port (Figures 7-8a and 7-8b) or plug into thekeyset daughterboard of your choice (see Chapter 9). Next, connect the DPIM to the door phoneusing #24 AWG (0.5mm) or #26 AWG (0.4mm) twisted pair wire.CAUTION: To reduce the risk of fire, use only #26 AWG (0.4mm) or larger telecommunicationline cord.When a customer-provided electric door release is installed, cross-connect the correspondingdoor release contacts on the DPIM to the door lock mechanism (Figures 7-8a and 7-8b). UseMMC 501 to program the duration of the contact closure as required. The door release contactson the DPIM are to be used for low voltage relay control only. The contacts are rated at 24 VDC–1 amp.WARNING: Do not attempt to connect commercial AC power to these contacts.