Carrier Access 21 E1 Balun Panel - Coax to Telco

[Photo of 21 E1 Balun Panel with 1.6/5.6 coax connectors]

[Photo of 21 E1 Balun Panel showing Telco connectors]

42 x Coax to 2 x Telco
- BNC - Telco
- 1.6/5.6 - Telco
- Type 43 - Telco
75 - 120 ohm
Coax - Twisted Pair
19 inch 1U Rack Mount
- Coax or Telco to the front
G703 and G704 Compliant
E1 (2Mbit/s) and E2 (8Mbit/s)
Modular Construction
- Up to 21 Dual Port Baluns

Designed for connection to Carrier Access Wide Bank 28 DS3™. 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 Carrier Access Wide Bank 28 DS3.

[Photo of 21 E1 Balun Panel with BNC coax connectors]

BNC

1.6/5.6

Type 43

Part Number	Description
TK-UBP01-021-TTR	Balun Panel 21E1 Type 43 to Telco
TK-UBP02-021-TTR	Balun Panel 21E1 1.6/5.6 to Telco
TK-UBP03-021-TTR	Balun Panel 21E1 BNC to Telco

Specifications
Coax Connector (75 ohm)	42 x BNC(F), 1.6/5.6(F), or Type 43(M)
Twisted Pair Connector (120 ohm)	2 x 50 way Telco female shielded
Transmission Line	ITU-T G.703 or G.704
Speed	2.048Mbit/s (E1), 8.448Mbit/s (E2) 1.544Mbits/s (T1), 6.312Mbit/s (T2)
Wiring Scheme	Carrier Access 1 Telco for transmit (Tx) 1 Telco for receive (Rx)
Cross Talk	Better than -60dB at 1 to 10Mhz
Insertion Loss	Less than 0.35dB
Return Loss	Better than 35dB
Power Requirements	None
Operating Temperature	-40° to +85° C
MTBF	30 Years
Dimensions (W x H x D)	482 x 44 x 67.5 mm
Weight	2 kg max.
Materials	Case - Zintec, black powder coated
Conformance	RoHS CE
Harmonisation Code	8544 - 421000

Carrier Access Wiring Scheme
E1 Channel	Transmit Telco		Receive Telco
E1 Channel	Ring	Tip	Ring	Tip
1	1	26	1	26
2	2	27	2	27
3	3	28	3	28
~	~	~	~	~
19	19	44	19	44
20	20	45	20	45
21	21	46	21	46