ERM-MUX/Plus-FXS Voice Tributary Card
The ERM-Mux/plus FXS Voice Tributary Card provides six independent Foreign Exchange Station Voice channel capability. These 6 channel tributary cards are designed for voice applications over E1. Typically, an FXS connects to a standard telephone set. The FXS needs to sense on-hook, off-hook or disconnected status. It also must be able to provide ring function to a telephone set and it must pass caller-ID information. In the ERM-Mux/plus point-to-point application, the FXS can connect to a remote FXO (Foreign Exchange Office) when deployed as an extension from PBX (Private Branch Exchange) or PSTN (Public Switched Telephone Network). It may also connect to a remote FXS, also for extension from PBX or as a direct 'hotline' voice connection. Individual Shielded RJ-45 connectors provide the voice connections. When using this card, an appropriate voice compatible power module must be used in the ERM-Mux/plus.
Features:
- Six independent channels
- 2 wire
- G.711 Codec
- 1x64 setting from any E1 channel
- Provides ring function
- Supports caller-ID forwarding
- PSTN extension or direct "Hot-line"
- Links PBX to PBX or extends POTS
- LED indicators for Power, Alarm, activity
- Hot Swappable
Specifications:
Effective ring voltage: AC 75VRMS +/-15V@25Hz +/-3Hz, <10% THD
Ring voltage at 300mA load: >50VACRMS
Loop resistance: <1.8K Ohms, including 300 Ohms for telephone
On-hook current: 10mA +/-3mA.
Off-hook loop current: 18-50mA.
Surge protection: 1000V, 10uSec transient response, decay to 50% in 700uSec
300VRMS for less than 200mSec; no component damage
220VRMS for 15 minutes; damage only local loop
Channel crosstalk: < -65dB, 1020Hz@0dBm0
Noise: <-65dBm0p weighted
Temperature: 0°C ~ 50°C
Humidity: 5~95%
MTFB: 65,000 hrs
