Nanjing Chongmao Technology Co., Ltd. M2004R wireless router user manual introduces the composition, features and working principles of M2004R router, including overview, system features, technical parameters, etc.
This manual introduces the M2004R wireless router, its hardware components, system features, and technical specifications. It explains the router’s dual‑mode GPRS/EDGE or CDMA 1X connectivity, built‑in DHCP server, firewall/NAT, DDNS, and other advanced functions.
The guide provides step‑by‑step installation instructions, interface descriptions, web‑based configuration procedures, and troubleshooting tips, including how to reset the device, change the admin password, and interpret indicator lights. This manual is written in Chinese.
| Maximum working current | 750 mA @ +5 VDC |
|---|---|
| Idle current | 300 mA @ +5 VDC |
| Dimensions | 191 × 132 × 38 mm (excluding antenna and mounting hardware) |
| Weight | 540 g |
| Operating temperature | -20 °C ~ +60 °C |
| Storage temperature | -30 °C ~ +75 °C |
| Relative humidity | 95 % (non‑condensing) |
| Ethernet ports | 4 × 10/100 Base‑T auto‑negotiating |
| Serial interface | RS‑232 (DB9) 300 ~ 115200 bps |
| Antenna connector | 50 Ω SMA (female) |
| SIM/UIM card voltage | 3 V |
The default username is admin and the default password is cmkj.