User guide

Installing the SCOPIA Gateway 55
Serial Gateway Cable Connections and Pin-outs
SIGNALING INTERFACE
C
ABLE PIN-OUT
CONFIGURATION
Table 2-8 describes the signaling interface pin-out configuration for the Serial
Gateway cables.
Table 2-8 Serial Gateway Signaling Interface Cable Pin-out
Signal Name Mnemonic RS-366 (DB-25)
Shield — 1
Digit Present DPR 2
Abandon Call & Retry ACR 3
Call Request CRQ 4
Present Next Digit PND 5
Power Indication PWI 6
Signal Ground — 7
Distant Station Connection DSC 13
Digit Signal Circuit 1 NB1 14
Digit Signal Circuit 2 NB2 15
Digit Signal Circuit 4 NB4 16
Digit Signal Circuit 8 NB8 17
Receive Common RC 18
Send Common SC 19
Data Link Occupied DLO 22