NEC Aspire S Manual page 109

3. Set the S3 - S6 jumpers to the proper settings for the function to be used.
Channel 1
Channel 2
4. Strip one end of the cable to be connected to the control relay or door box so that approximately
1/4" (8 mm) of bare wire is exposed.
Aspire S Hardware Manual
Section 4: Telephones and Optional Equipment
S3 S4
Open Open Door Box
Open Short External Paging Speaker
Short Open External Ringer
Short Short External Music on Hold / Recording System On steady.
S5 S6
Open Open Door Box
Open Short External Paging Speaker
Short Open External Ringer
Short Short External Music on Hold / Recording System On steady.
S3
S4
S6
Figure 4-4: JUMPER SETTINGS
8mm
Function
Function
Open setting
S5
Cable
Section 4: Telephones and Optional Equipment ◆ 4-3
LED Indication
On when in use.
On when in use.
On when in use.
LED Indication
On when in use.
On when in use.
On when in use.
Short setting
4