NEC NEC-80570 User Guide - Page 22

Connecting Extensions Connecting Extensions Connecting Analog and Digital Extensions The base system connects 8 digital extensions and 4 analog extensions. With the Expansion Board installed, the system provides a total of 16 digital extensions and 8 analog extensions. To connect extensions (Figure 3-2): 1. Install a modular jack for each extension within 6 feet of the telephone's location. 2. For each extension, run one-pair 24 AWG station cable from the cross-connect block to the modular jack. 3. Terminate the station cable WHT/BLU - BLU/WHT leads to the RED and GRN lugs in the modular jack. 4. Back at the main equipment location, run one pair of cross-connect wire between the pins on the exten- sion block and cross-connect block to complete the connection. 5. Install bridging clips as required. !! Important !! Digital station ports (300-315) automatically detect the type of connected keyset when you plug it in. You don't have to individually set keyset circuit types in 1801 - Extension Circuit Type. One-Pair Cross Connect Station Block YEL BLU-WHT Cross Connect Block RED 625 Modular Jack BLK WHT-BLU GRN 80200 - 11 Figure 3-2: Connecting Extensions 3-2 x Section 3: Connecting Trunks and Extensions DS1000 Hardware Manual