welcome,guest
Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2017-07-07 06:59
198
Company Profile
Hong Kong Safe Guard Co. LimitedBy certification [File Integrity]
Contact: hksfgt(Mr.)
Telephone: (86 755) 82908961 Ext:808 (86 755) 23736289
Area: Beijing
Address: Beijing
Website: http://hksfgt.furonghua.net/
unit price:Negotiable
unit price:Negotiable
unit price:Negotiable
unit price:Negotiable
unit price:Negotiable
unit price:Negotiable
Name | Description | Level | Remark | |
1 | VCC |
DC |
12 V |
DC 12V ( as good in range 7.5~15V), or customized |
2 | ||||
3 |
GND |
GND |
---- |
------------- |
4 | ||||
5 | A(TXD) | RS-485 A or TXD of RS-232 | Either RS-485 or RS-232 | |
6 | B(RXD | RS-485 B or RXD ofRS-232 | ||
7 | PTT | Transmit control | TTL | Low level validity |
8 | MIC | Audio input | --- | Recommend 1K-2K, -27dB sensitivity of microphone |
9 | SP | Audio output | --- | 8Ω 0.5 |
10 | SQ | Receiving indication | TTL | High-level |