NEC UNIVERGE SL2100, Hardware Manual

Page: 132 / 174

5.5.4 Doorphone/Security Sensor Device Interface Specifications
Table 2-34 Doorphone Interface Specifications
Item Specification
Output Impedance 600 Ω
Output Level Nominal 500 mV (-10 dBm)
Maximum Output 1.75 V RMS
Applied Voltage during
Sensor Off
Loop Current during
Sensor On
Port Assignment
25 V 40 mA
Program 10-03-05:1 (Read only)
* Port assignment should be set on Doorphone mode by Hard-
ware-Switch on board.
5.6 Installing the Door Unlock Devices
A maximum of two door unlock devices can be connected to each Chassis.
308U-A1
1-2 1-3 3-4 5-6 7-8
HYB/SLI RL/Audio COI
Relay 2 Relay 1
5
2-Core Cable
(Non polarity)
4
Audio In
Audio Out
6
2
3
7
1
8
Figure 2-119 Connecting the Door Unlock Device (308U-A1)
SL2100 ISSUE 1.0
2-86 Installation