Aiphone N-20AS user manual

Summary of the content on the page No. 1

0108
n
Add-on Selectors for the NEM Lamp Memory System
N-20AS, 20-call N-40AS, 40-call
- INSTRUCTIONS -
The N-20AS and N-40AS add-on selectors are designed to function with the NEM Lamp Memory System, Type
"C" or later. Multiple add-on selectors can be added to a master station along with a variety of sub stations to
create a communication system tailored to a user's needs. All standard NEM system accessories can be used in
conjunction with the add-on selectors. Each add-on selec

Summary of the content on the page No. 2

WIRING DIAGRAMS: N-20AS/ NEM-40/C N-40AS NA-A #1 NB-L #41 NA-AN #2 NA-NE #42 1 1 A Red NE-NVP #3 Red 2 2 A 3 3 Red NAR-6A Blu Blu Green Org ~ ~ Org jumper BLUE Org B B Org 40 40 C C Blu Grn Grn D D Grn Blk E E E E Blk Blk Brn X1 Red X2 Org X3 Yel X4 Wiring from Grn X5 Add-on Selector Blu X6 Vio X7 Gray X8 WIRING NOTE: Wht H PS-2420UL PS-2420UL A sub station can be wired Blk E either to the master or to + + + + the add-on selector. - - - - NEM with 40+ subs using NB-U’s for Background Music

Summary of the content on the page No. 3

TERMINAL LAYOUT: N-20AS Brass Jumper Brass Jumper N-nAS TERMINAL DEFINITIONS: + Positive 24V DC - Negative V1 A1 V2 A2 +- 1~40 Station number E Common communication EEE E E EE E E E V1-V4 Connects to NB-U for A1-A4 Background Music 10 9 8 7 6 5 43 21 N-40AS 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 432 1 20 19 18 17 16 15 14 13 12 11 Brass Jumper Brass Jumper Brass Jumper Brass Jumper 30 29 28 27 26 25 24 23 22 21 + - V1 A1 V2 A2 V3 A3 V4 A4 40 39 38 37 36 35 34 33 32 31 EE E E E E E E E E OPE