Siemens OPTIPOINT 500 - Manual (Page 51)

P31003-E8400-A100-3-7620
Service Manual
5-5
Nur für den internen Gebrauch Option Adapters and Ports
optiPoint 500 acoustic adapter
● Ringing, alerting, and key tones are switched to the basic speaker (and not to the external
speaker port).
●
You can use the volume keys on the telephone to adjust the volume level of both the inter-
nal and external speakers.
You can also use the volume control on the external amplifier to adjust the volume of the
external speaker.
Pin assignments, Desk Microphone and External Speaker: MW 8/8
External Speaker:
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8
+U GND NF Sens LS_SENS LSP NC DGND
Internal resistance: 0 ohms; 10
µF
Level (with PCM -20dBm): -4.8 dBm (at volume level 8; 0.775 V = 0 dBm)
Sense lead to GND: Int. speaker deactivated, active for ringer only
1 2 3 4 5 6 7 8
RJ45
Y cable MW8/8
for connecting
speaker and mi-
crophone
Floating contact
(MW6/6)
Headset MW8/8