Siemens OPTIPOINT 500 - Manual (Page 58)

Option Adapters and Ports Nur für den internen Gebrauch
P31003-E8400-A100-3-7620
5-12 Service Manual
optiPoint 500 recorder adapter
5.6 optiPoint 500 recorder adapter
Interfaces
Figure 5-2 Recorder adapter
The recorder adapter has an interface for a second headset and a recorder interface.
The way in which the headset plus adapter interacts with the telephone and the CS is described
by the CorNet-TS layer 3 specification for Symphony. The CS can detect a second headset af-
ter it has been plugged into this option.
Interface Description
When a second handset is connected, the uplink beep capability is provided by adding the
beep and uplink audio during the beep. A beep detection circuit activates the uplink beep when
the switch recorder generates the beep signal, thus maximizing the echo reflection attenuation.
The users hear the uplink beep in the secondary tone path.
Second Handset: MW 4/4
Pin 1 2 3 4
- NF+ NF- -
Internal resistance: 1k in series with 10
µF
Level (input resistance 10 K): -23dBm at a PCM level of -10 dBm
Headset