Telephone-switchboard model

S.4.2.2 The Switchboard Model In the switchboard model the chains do not have a reentry into the lamellae by regular folding they rather reenter more or less randomly (53). The model more or less resembles and old-time telephone switchboard. Of course, both the perfectly folded chain and switchboard models represent limiting cases. Real systems may combine elements of both. For bulk systems, this aspect is discussed in Section 6.7. 

---