First line: T1/E1/CEPT/ISDN-PRI QUAD TRANSFORMERS P/N: 4S1008 DATA SHEET General Specifications Quad transformers surface mount package supports T1/E1 ports Available transmit and/or receive configurations Models matched leading quad dual T1/E1/CEPT transceivers Electrical Specifications 25°C Turns Ratio: 1Abstract: .. T1/E1/CEPT/ISDN-PRI QUAD TRANSFORMERS P/N: 4S1008 DATA SHEET. A. General Specifications 1. Quad transformers in a surface mount package supports two T1/E1 ports 2. Available in transmit and/or .. Tags: PIN28-26 5-7 19-17 14-16 PIN28-26 19-17 PIN32-30 23-21