Huawei MTS9300A - Page 29

Table 3-4 Pin denitions for the RS485 port
Pin Signal Description
1 TX+ Transmits data over RS485
2 TX-
4 RX+ Receives data over RS485
5 RX-
3, 6, 7, 8 NA –
Figure 3-5 DIP switch
NO TE
● When multiple DCDB48-200-16Bs are cascaded, you need to set the address DIP switch
for the DMU02C1.
● If one DCDB48-200-16B is installed, you do not need to set the address DIP switch for
the DMU02C1.
MTS9300A Telecom Power (Ooredoo, Indonesia,
MTS9304A-HD2002)
User Manual 3 Components
Issue 06 (2021-10-13) Copyright © Huawei Technologies Co., Ltd. 23