CaptionCall 78T
CaptionCall 78T (v0.8)
FCC approval date: 14 November 2019
Country of manuf.: China
Type: analog phone gateway
Power: 12 VDC, 1.5 A
Connector type: barrel
Conn. measurements: 5.5 mm (OD), 2.1 mm (ID), 9.5 mm (LEN)
CPU1: Rockchip RK3368 (1.5 GHz, 8 cores)
FLA1: 8 GiB 8,192 MiB <br />8,589,934,592 B <br />67,108,864 Kib <br />8,388,608 KiB <br />65,536 Mib <br /> (Kioxia THGBMJG6C1LBAIL)
RAM1: 1 GiB 1,024 MiB <br />1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br /> (Nanya NT5CC256M16ER-EK × 2)
Expansion IFs: none specified
JTAG: yes, 19-pin header, unpopulated
Serial: yes, 6-pin header, unpopulated, 3.3V TTL
WI1 module: AMPAK AP6256
WI1 module IF: SDIO 3.0
WI1 chip1: Broadcom BCM43456
WI1 802dot11 protocols: abgn+ac
WI1 MIMO config: 1x1:1
WI1 antenna connector: U.FL
ETH chip1: Rockchip RK3368
ETH chip2: National Semiconductor DP83848
LAN speed: 100M
LAN ports: 1
abgn+ac
Additional chips
Power Management IC w/ RTC;Rockchip;RK808-B;;1;
10W Filter-Free Mono Class-D Audio Amplifier;TI;TPA3111D1;;1;
24-bit Stereo Audio Codec w/ Speaker Driver;Nuvoton;NAU8822L;;1;
Quad General Purpose Low-Voltage Operational Amplifier;National Semiconductor;LMV324;;1;
Triple 2-Channel Analog Multiplexer/Demultiplexer;TI;SN74LV4053A;;1;
3.5A, 23V Synchronous Step-Down Converter;FitiPower;FR9886;;1;
Low-power Dual-Voltage Comparator;STMicro;LM393;;1;
Optocoupler, Phototransistor Output;VIshay;4N26;;1;
Voltage Monitor with Detectors;IXYS;CPC5712;;1;
4-Pin OptoMOS Relay;IXYS;CPC1030N;;1;,
Flags: speaker, microphone, analog phone port, LCD display, Audio out (2.5 mm)
802dot11 OUI: none specified
Ethernet OUI: 48:65:EE:28
For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.
For a list of all currently documented Rockchip SoC's with specifications, see Rockchip.
Captioning Phone
"78T_V0.8" and "2019.08.20" are silk-screened on the board top.
Hardware specification
- CPU: Rockchip RK3368 @1.5GHz
- SoC: Octa-Core ARM (Cortex-A53)
- GPU: PowerVR G6110, supports
- OpenGL 3.2, OpenGL ES 3.1, OpenCL 1.2
- 4K UHD H.264/H.265 video playback
- Storage: 8GB (eMMC 5.1) Flash
- Memory: 1GB (DDR3) SDRAM
- WLAN: 1×1 802.11abgn/ac (2.4/5GHz)
- Network: 1x 100Mbps LAN port
- Power Source: 12V/1.5A via barrel
Images
Main Board top
Main Board bottom
Keypad Board top
Keypad Board bottom
Internal view
