Tekmos Balun Panel Adtran G.703 21E1 Coax to Telco Balun Panel

Balun Panel 21E1 (42 Port)
Adtran
Coax to Telco

21 x E1 (42 Port) Balun Panel

Designed for connection to Adtran MX2800 STS-1 Access Multiplexer™. The Tekmos 21E1 Balun Panel converts 42 ports—21 E1 channels—from 75ohm coax to 120ohm twisted pair. Twisted pair connectors are female 50 way Telco (Amp Champ), one for the transmit circuits, one for the receive circuits. Complies with ITU-T G.703 standard for bi-directional signal conversion at 2.048Mbit/s and 8.448Mbit/s data rates. Coaxial connectors can be specified as BNC, Type43 (BT) or 1.6/5.6 (Small Siemens).

Cables are available for connecting the balun panel to the Adtran MX2800 STS-1. Only occupying 1U rack space in a standard 19" rack, with reversible mounting ears, an optional 23" mounting kit is also available.

21 x E1 (42 Port) Balun Panel - Rear View

21 E1 Channels
75ohm↔120 ohm impedance matching and isolation protection
Coax connectors - BNC, Type43, 1.6/5.6
Twisted pair connectors - Telco 50 way female
2.048Mbit/s and 8.448Mbit/s data rates
No Power Required
10 Year Parts and Labour Warranty
Complete with rack mount kit

Specifications
75 ohm Connections	42 x BNC, 1.6/5.6, or Type43
120 ohm Connections	2 x Telco female 50 way
Transmission Line	ITU-T G.703 or G.704 (transparent)
Speed	2.048Mbit/s (E1) and 8.448Mbit/s (E2)
Cross Talk	Better than -60dB at 1 to 10Mhz
Insertion Loss	Less than 0.35dB
Return Loss	Better than 35dB
Dimensions (mm)	482 x 55 x 44.5 (WDH)
Wiring Scheme	Adtran
Materials	Case - Zintec, Black Powder Coated
Weight	2Kg
Warranty	10 Years, Parts and Labour
MTBF	Estimated 30 Years
Operating Temperature	0° to 50° C
Power Requirements	None
Harmonisation Code	8544 - 42 - 10

Part Numbers	Description
TKPP.E21.01	Balun Panel E21 Type43
TKPP.E21.02	Balun Panel E21 1.6/5.6
TKPP.E21.03	Balun Panel E21 BNC