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ACCULINK 3350 E1 NTU
POWER
Name
POWER
AUX PORT
COM PORT
HDSL NETWORK
G.703—120
G.703—120 /75 (switch)
G.703—75 TX/RX
G.703—RX SHIELD (switch)
1-4
PORT 1
AUX
COM
120
PORT
PORT
Figure 1-2. Model 3350 Rear Panel
Table 1-1
Rear Panel Connectors and Switches
Supplies power to the E1 NTU by providing an attachment for the ac power
module or the optional dc power cable (+24 or – 48 Vdc).
Supports SNMP LAN Adapter or daisy-chain connections.
Provides access to a locally connected PC, an ASCII terminal or printer, or an
SNMP management link.
Provides access to the HDSL network.
Provides a 120 ohm balanced G.703 interface.
Selects either a 120 ohm balanced G.703 interface (the switch is IN) or a 75 ohm
unbalanced G.703 interface (the switch is OUT).
Provides two BNC connectors (Transmit and Receive) for a 75 ohm unbalanced
G.703 interface.
Selects either an "open" or "earth" shield connection for the 75 ohm RX interface.
(This switch must be set to "open" when using the 120 ohm interface.)
June 1996
TX
RX
RX SHIELD
120
OPEN
IN
EARTH
OUT
75
75
75
G.703
Function
HDSL
NETWORK
495-14731
3350-A2-GB20-10
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