CTC Union ETU01C Specifiche Scaricare il pdf (Pagina 20)

Chapter 2. Installation

May 2011

Figure 2-2 ETU-01A DC rear panel, Option: DCE (V.35)

Figure 2-3 ETU-01A AC+DC rear panel, Option: DCE (V.35)

2.5 E1 Line side

DB-15 Connector (balanced 120 Ohm)

The pin assignm

ent for DB-15 connector follows AT&T Pub 62411:

Pin: Function:

E1 Link

1 TTIP (Transmit data out)

9 TRING (Transmit data out)

3 RTIP (Receive data in)

11 RRING (Receive data in)

ALARM relay contact

7 common

8 NO (normally open)

15 NC (normally closed)

BNC coax connectors (unbalanced 75 Ohm)

Two BNC coax connectors marked RX and TX (Same function as the E1 line DB15 connector).

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CTC Union ETU01C Specifiche Pagina 20