NEC SL1100 - Analog Communications Interface (ACI)

Analog Communications Interface (ACI)
Description
The Analog Communications Interface (ACI) feature uses analog ports (with associated relays) for
Music on Hold, External Paging, and Back Ground Music (BGM).
External Paging, External MOH and BGM
Each 084M-B1 units have 2 Audio In and 1 Audio Out jack on board. 2 Audio In jacks are used for
BGM (J431: BGM) or External MOH (J421: MOH), and 1 Audio Out jack is for External Paging (J411:
PAGE). A system can have 1 BGM or MOH source. The BGM or MOH source is selected in PRG
10-60-01.
When configuring a 3 KSU system, a maximum of 3 External Paging can be used by using Audio Out
jack at 084M-B1 unit.
Relay Control
1 KSU has 2 relay ports (J7: RY1/2) on 084M-B1 unit. The System can have a maximum of 6 relay
ports.
These relays can be used for External MOH, BGM resource, External Speaker, or Door Phone control
in accordance with PRG 10-61-01 and PRG 10-61-02 setting.
Conditions
Interface Specifications
Relay Contacts
Maximum Contact Ratings 48 VDC @ 320 mA
BGM/ExMOH Source Input
Output Impedance 600 Ohms @ 1 KHz
Input Level 250 mV (– 10 dBm)
Maximum Input 1.0 Vrms
External Paging Output
Output Impedance 600 Ohms @ 1 KHz
Output Level 250 mV (– 10 dBm)
Maximum Output 400 mVrms
Default Settings
Disabled
System Availability
Terminals
None
SL1100
ISSUE 2.0
1-34
Analog Communications Interface (ACI)
A