+44 (0)1624 818275

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]

G703 Balun
75 - 120 ohm
Coax - Twisted Pair
19 inch 1U Rack Mount
- Coax or Telco to the front
E1 (2Mbit/s) and E2 (8Mbit/s)
Modular Construction
- Up to 21 Dual Port Baluns

The 21 E1 Coax to Telco TTR Impedance Matching Balun Panel provides 75-120 ohm conversion (coax to twisted pair) for 21 E1 channels (Tx and Rx). The panel conforms to ITU-T G.703, matching the impedance and signal characteristics of up to 42 unbalanced 75 ohm coax connections with up to 21 balanced 120 ohm twisted pair connections.

Only 1U high, the 19 inch rack mount balun panel is available with BNC, 1.6/5.6 (Small Siemens) or Type 43 (BT43, SMZ) coax connectors. Twisted pair connectors are 50 way shielded female Telco (AMP Champ) - one Telco for transmit, one Telco for receive.

[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	TTR 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 (WxHxD)	482 x 44 x 67.5 mm
Weight	2 kg max.
Materials	Case - Zintec, black powder coated
Conformance	RoHS, CE

TTR Wiring
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