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24 E1 T1 Balun Panel - Coax to RJ21 Telco

[Photo of 24 E1 Balun Panel with BNC coax connectors]

[Photo of 24 E1 Telco Balun Panel showing Telco connectors]

G703 Balun Panel
Converts 75 to 120 ohm
Coax to Twisted Pair
19 inch Rack Mount
- Coax or Telco to the front
Cisco PID SPA 24CHT1-CE-ATM compatible
E1 (2Mbit/s) E2 (8Mbit/s) T1 (1.5Mbits/s) T2 (6.3Mbits/s)

The 24 E1 - T1 Coax to RJ21 Telco TTR Balun Panel provides 75 to120 ohm conversion for (coax to twisted pair) 24 E1 or T1 channels (Tx and Rx). The panel conforms to ITU-T G.703, matching the impedance and signal characteristics of 48 unbalanced 75 ohm coax connections with 24 balanced 120 ohm twisted pair connections.

Only 1U high, the panel is available with Type 43 (BT), 1.6/5.6 (Small Siemens), Ericsson M4 or BNC coax connectors. The 2 twisted pair connectors are 50 way shielded female RJ21 Telco (Amp Champ) - one Telco for Transmit, one Telco for Receive.

See 24 E1-T1 Balun Panel for an alternative wiring scheme.

[Photo of 24 E1/T1 Balun Panel with BNC coax connectors]

BNC

1.6/5.6

Type 43

[Photo of 24 E1/T1 Balun Panel with M4 coax connectors]

Ericsson M4 [Photo of 24 E1 T1 Balun Panel with Ericsson M4 coax connectors]

Part Number	Description
TK-UBP01-024-TTR	Balun Panel 24E1-T1 Type 43 to Telco
TK-UBP02-024-TTR	Balun Panel 24E1-T1 1.6/5.6 to Telco
TK-UBP03-024-TTR	Balun Panel 24E1-T1 BNC to Telco
TK-UBP06-024-TTR	Balun Panel 24E1-T1 M4 to Telco

Specifications
Coax Connector (75 ohm)	BNC(F), 1.6/5.6(F), Type 43(M), Ericsson M4(F)
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	2.1 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
~	~	~	~	~
22	22	47	22	47
23	23	48	23	48
24	24	49	24	49