Description
SPOTLIGHT:
PCM-30 provides conversion between ITU-T G.703 standard E1 framed interface and up to 30 channels of (FXS/FXO/E&M/RS232/V35/Eth/….) interfaces.
The equipment is used to converge the signals such as voice, data and image into a standard 2M interface via various interface boards, and realize point-to-point transmission. V35, 2/4 E&M, RS-232, and Ethernet ports as options along with voice over same E1.
FEATURES:
1. E1 G.703/G.704 to POTS FXS/FXO conversion;
2. V35, 2/4 E&M, RS-232, and Ethernet ports as options along with voice.
3. The voice interface supports caller ID display;
4. Provides two clock types: E1 master clock, E1 line clock
5. Provides 2 kinds of loop-return function, namely E1 self-looping at local end, ordered self-loop at remote end;
6. Realize the automatically rate set of local device to remote device
7. Has the function of pseudo-random code testing, convenient for opening of the circuit,and can be used as an error code instrument;
8. Realizes long-distance monitoring of local device to the remote device based on self-copyright IC;
9. E1 supports 75 Ohm unbalanced and 120Ohm balanced impedance at the same time;
10. Provides 30 voice channels, support calling number indication, DDI and other features;
11. Voice port supports O port and S port, O port connects switch and S port connects user’s phone;
SPECIFICATIONS:
E1 interface
Interface standard: Conforms to G.703 standard
Interface rate: N×64Kbps, N:1～31
Code: HDB3
Interface impedance: 75A (unbalanced), 120A (balanced)
Connecter: BNC (75 A), RJ45 (120 A)
Vibration characteristic: Satisfies G.742 and G.823 standard
Clock type: internal-clock, line clock
FXS phone port
Ring voltage：75V
Ring frequency：25HZ
Two line input impedance：600A(hanging off)
Wastage：40 db
FXO switch port
Ring test voltage：35V
Ring test frequency：17HZ-60HZ
Two line input impedance：600A(hanging-off)
Wastage：40 db
2W/4W audio or 2W/4W E&M interface
Impedance:200Ω+680Ω||0.1μF
4 lines AD gain:14 dB(tunable)
4 lines DA gain:-2 dB(tunable)
4 lines AD frequency characteristic:-0.2 – +0.2dB
2 lines AD frequency characteristic:-0.2 – +0.2dB
2 lines DA frequency characteristic:-0.2 – +0.2dB
Return loss:40dB
Degree of balance:70dB
Mutual module rejection ratio:70dB
Power rejection ratio:30dB
Spare channel noise:≥65dB
Loop impedance:600Ω
V.35 interface
Interface type: V.35 synchronous
Velocity: N×64Kb/s (N =1~15)
Clock mode: DCE
10Base_T interface
interface type：10Base-T
transmission speed：Nx64Kb/s（N = 1-15）
protocol：link layer bridging
RS232 interface
Speed：≤19.2kbps auto-negotiation
Mode：Asynchronous Receiver/Transmitter
Physical Interface: RJ45 jack
RS232 Synch interface
Interface type:V.24 asynchronous (simplex, duplex is optional)
Rate:4800bps, 9600bps,19200bps, optional
Clock mode:DCE, DTE, optional
Environmental
Operating temperature: -25 C~+70 C
Storage temperature: -40 C~+80 C
Relative temperature:95% (uncondensed)
Power supply
option I – DC-48V,range DC-36V~DC-72C
option II – AC220V,range AC165V~AC265V
