Products Description
The RPM 777 526 DC Power Cable is a DC power cable specifically designed for the Ericsson Baseband 6630 unit. Part of the Ericsson RPM 777 series, this cable (PCM-0721) is a critical component of telecommunications base station infrastructure, primarily used to supply stable -48V DC power to baseband units in equipment such as the RBS 6601. It utilizes a dedicated M16 interface connector to lock onto the equipment, ensuring exceptional connection reliability. Within Ericsson's power architecture, the cable supports the 3-wire (DC-I) power feed mode but can also accommodate the 2-wire (DC-C) mode through specific jumper configurations to suit various on-site power environments. As a proprietary accessory, it is perfectly suited for baseband processing units in 4G LTE and 5G networks, ensuring uninterrupted operation during high-load data transmission.
Specification
|
Product name |
RPM 777 526 DC Power Cable For Ericsson Baseband |
|
DWG No. |
PCM-0721 |
| Compatible with | Ericsson RPM 777 526 |
| Other Model |
RPM 777 526/01500 - 1.5m Length RPM 777 526/01800 - 1.8m Length RPM 777 526/02000 - 2m Length RPM 777 526/10000 - 10m Length |
FAQ
Q: Is this cable compatible only with the Baseband 6630, or can it be used with other Ericsson baseband units?
A: This cable is specifically designed for the Baseband 6630 and serves as its standard DC power accessory. It is also compatible with baseband units (BBUs) in base station systems such as the RBS 6601. However, for other models (e.g., Baseband 5212, 6210), direct interchangeability is not recommended due to potential differences in interface types or power pin assignments; equipment interface specifications should be verified.
Q: What are the differences between the DC-I and DC-C power modes, and how are they switched?
A: DC-I (3-wire system): Includes -48V, 0V (return), and Protective Earth (PE); this is the natively supported mode, offering superior electrical protection and interference immunity.
DC-C (2-wire system): Uses only the -48V and 0V lines (omitting PE), making it suitable for certain simplified power environments.
Switching method: Achieved via jumper configuration at the equipment end or within the cable connector; typically requires adjusting pin shorting arrangements according to the Ericsson baseband unit's installation manual. Field modifications by unauthorized personnel are not recommended; the procedure should be performed by experienced engineers.
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