Technical Specifications: Bhumika presents a breakthrough in technology by integrating the WAN T1 interface to the GSM mobile communications network with 24, GSM (mobile) wireless links for mobile communications with an integrated T1 Interface


E1 PRI ISDN GSM Gateways Technical Specifications

	E1-30-SIM
	Product Brochure (PDF) GSM Pros (PDF) PRI ISDN 30 SIMs GSM Gateways
	PRI ISDN 30 SIMs GSM Gateways PRI ISDN 90 SIMs GSM Gateways E1 GSM Gateways E1-90 GSM Gateways T1 GSM Gateways T1-72 GSM Gateways
	Other Products
	Multiplexers STM-1 / STM-4 SDH Multiplexers TDM (E1 / T1) over IP / Ethernet E1 & T1 GSM Gateways Channel Banks Voice Compression - DCME Echo Cancellers Voice over IP (VoIP) - AudioCodes T1 <> E1 Converter E1 / T1 WAN Routers
	Test Instruments
	Precision Power Analyzers Optical / Laser Power Meters Digital Multimeters GPIB / PXI Controllers Clamp Meters Insulation Resistance Testers Thermometers

E1 PRI ISDN Interface Card

Number of E1 PRI ISDN Interfaces One, (User or Network Modes - Configurable)

Conformity G.703

Frame Structure As per ITU-T (CCITT) G.704

Signaling PRI ISDN (Euro ISDN) Signaling as per ITU-T Rec. Q.921, Q.931

PCM Sampling Rate 8000 samples / second.

Encoding Law A Law as per ITU-T G.823

Bit Rate 2048Kbps ą 50ppm.

Code HDB3

Nominal Impedance 120 Ohms Balanced

Connector RJ45

Pulse Mask As per ITU-T (CCITT) Rec. G.703

Output Jitter <0.05UI (in the frequency range of 20Hz to 100KHz).

Permissible Attenuation 6dB at 1MHz

Return Loss at:
51.2 KHz to 102.4 KHz.
102.4 KHz to 2048 KHz
2048 KHz to 3072 KHz
> 12dB
> 18dB
> 14dB

Jitter Tolerance As per ITU-T (CCITT) G.823

Loss and Recovery of Frame Alignment As per Clause 3 of ITU-T (CCITT) G.732

Loss and Recovery of Multi-Frame Alignment As per Clause 5.2 of ITU-T (CCITT) G.732

Power Supply Card

Input DC voltage	-48V DC ( nominal )
Range of input	-40V to -60V DC
Output voltages	+5V
Full Load Output Current	18A@5VDC
Input Voltage Reversal Protection	Provided in the Card
Over Current Protection	20A for +5V
Short Circuit Protection	Current limit - 20A. Recovers on removal of short
Under Voltage	< 4.5V
Over Voltage	5.4V to 5.6V
Efficiency at full load	>80%
Ripple at full load	<5mVrms
Spike at full load	<50mV
Power Consumption	120 Watts (Worst Case)

GSM Access Card

Number of GSM Interfaces	1 ~ 30 (Stackable, 1 thru 30).
Type	Dual Band EGSM 900 MHz and EGSM 1800 MHz. Optional: Dual Band EGSM 850 MHz and 1900 MHz.
Compliance	Compliant with ETSI GSM Phase 2+ standard (Normal MS) Class 4 (2W @ 900MHz) Class 1 (1W @ 1800MHz)
Approvals	Fully Type Approved to GSM Standards
SIM Interface Internal Tray	Toolkit Class 2. 3V Reader
Voice Features	Full Rate, Enhanced Full Rate And Half-Rate (FR/EFR/HR)
Called ID	Enable / Disable - User Selectable

Alarms

An alarm shall be displayed in LED L1 / L2 for the following reasons

Invalid SIM Card
Unregistered SIM Card
Faulty SIM Card
Faulty GSM Module
GSM Access Card Out of Range

Echo Canceller Card (Optional Extra)

Provides voice echo cancellation of up to 64ms / 128ms
Conforms to ITU-T G.165 and ITU-T G.168
G.164 /G.165 disable tone detection
Non-Linear Processor with Comfort Noise Insertion
Narrow-Band Detector
Eliminates long echo tail.

E1 Echo Canceller Card - 64ms. / 128ms. (Optional Extra)

Number of Interfaces	2, 1 - Input (RJ-45) 1 - Output (RJ-45)
Conformity	G.703
Frame Structure	As per ITU (CCITT) G.704
Signaling	Pass-Through
PCM Sampling Rate	8000 Samples / sec
Encoding Law	A Law as per ITU (CCITT) G.711
Bit Rate	2048 Kbps ą 50 ppm
Code	HDB3
Nominal Impedance	120 W balanced
Peak Voltage of a mark For 120 W balanced interface	3.0 V ą 0.3 V
Peak Voltage of a space For 120 W balanced interface	0 V ą 0.3 V
Nominal Pulse Width	244 ns
Pulse Mask	as per ITU (CCITT) Rec. G.703
Output Jitter	< 0.05 UI (in the frequency range of 20Hz to 100 Khz)
Permissible Attenuation	6 dB at 1 MHz
Return Loss at: 51.2 KHz to 102.4 Khz 102.4 KHz to 2048KHz 2048KHz to 3072 Khz	> 12dB > 18dB > 14dB
Jitter Tolerance	As per ITU (CCITT) G.823
Loss and recovery of frame alignment	As per clause 3 of ITU (CCITT) G.732
Loss and recovery of multiframe alignment	As per clause 5.2 of ITU (CCITT) G.732

Mechanical Specifications

Rack Mounting	Standard 19-Inch DIN Rack
Height	6U (265 mm)
Depth	290 mm
Width	19-inch (477mm)
Weight	12 Kgs. (Net)