NEC SL1000 - 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
By setting the PRG 10-03-02, COI to "1 = Audio Port" at 408M-A1, the trunk ports CO2 to CO4 can be
used for audio port (External paging, External MOH, BGM). (SL1000)
Each CO ports are configured as follows, COI2 : Paging Out, COI3 : MOH In, COI4 : BGM In. System
can only have each 1 port for BGM and External MOH. If more than one port are set as MOH, BGM
the youngest 408M-A1 ports will be used. For example if expansion KSU2 and KSU3 have
programmed for BGM or MOH, KSU3 setting will be ignored and BGM/MOH of KSU2 will be active.
(SL1000)
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. (SL1100)
External paging can be set for each 408M-A1 units except 3rd Expansion KSU. So maximum 3
External paging can be usable. (SL1000) When configuring a 3 KSU system, a maximum of 3 External
Paging can be used by using Audio Out jack at 084M-B1 unit. (SL1100)
Relay Control
1 KSU has 2 relay ports (J7: RY1/2) on 408M-A1 unit. The System can have a maximum of 8 relay
ports. (SL1000) 1 KSU has 2 relay ports (J7: RY1/2) on 084M-B1 unit. The System can have a
maximum of 6 relay ports. (SL1100)
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
SL1000/SL1100 ISSUE 2.0
1-34
Analog Communications Interface (ACI)
A