Raisecom
RC3000-15 (P100R001) Hardware Description
8 Voice cards
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
97
8.5.2 Version
Card
Version
RC3000-15-12MT
A
8.5.3 Slots
Chassis version
Slot
E.30 and E.20
1–6 and 9–13
8.5.4 Interfaces
Interface type
Table 8-32 lists interfaces on the 12MT card.
Table 8-32
Interfaces on the 12MT card
Name
Type
Description
1–12
HDB26 female interface
For accessing 12 magneto telephone interfaces
Interface parameter
Table 8-33 lists parameters of the interface on the 12MT card.
Table 8-33
Parameters of the interface on the 12MT card
Parameter
Description
Coding scheme
A-law
Bit rate
64 kbit/s
Audio port impedance
100 kΩ (high impedance) during ringing
600 Ω (low impedance) under other situations
Effective transmission
bandwidth
300–3400 Hz
Gain frequency features
The Rx (A/D) gain ranges from -23 to 2 dB, and is 0 dB by
default. Its step is 0.1 dB.
The Tx (D/A) gain ranges from -17 to 8 dB, and is -3.5 dB by
default. Its step is 0.1 dB.
