NEC NEC-80570 User Guide - Page 21

Connecting Trunks Section 3: Connecting Trunks and Extensions Connecting Trunks Connecting Trunks Connecting Analog Trunks The base system connects 3 loop start CO trunks. With the Expansion Board installed, the system provides a total of 6 loop start CO trunks. To connect analog trunks (Figure 3-1): 1. Install additional modular jacks as required. The telco may provide your trunks in a single RJ-25C jack or in multiple RJ-11C jacks. Review the illustration below. 2. Wire the additional modular jacks as shown. 3. Plug line cords from the telco mod jacks to the system mod jacks as shown. 80200 - 13 To CO 1-3 on DS1000 Cabinet BLK BLUE GRN 1T 3R 2T 2R 3T 1R YEL WHT RED RED WHT YEL GRN BLUE BLK From Telco RJ-25C 3 BLK BLUE GRN RED WHT YEL 1R To CO 1-3 on DS1000 Cabinet YEL WHT RED 1T GRN BLUE BLK RED WHT YEL 2R From Telco RJ-11C 2T GRN BLUE BLK RED WHT YEL 3R From Telco RJ-11C 3T GRN BLUE BLK (Connections for CO 1-3 shown) From Telco RJ-11C Figure 3-1: Connecting Analog Trunks DS1000 Hardware Manual Section 3: Connecting Trunks and Extensions x 3-1