Nortel Networks Circuit Card - Manual (Page 401)

NT6D80 MSDL card Page 401 of 906
Circuit Card Description and Installation
Table 151 on page 402 lists RS-422 interface specifications for EIA circuits.
It shows the connector pin number, the associated signal name, and the
3 Receive Data (RX) BB 104 X
4 Request to Send (RTS) CA 105 X
5 Clear to Send (CTS) CB 106 X
6 Data Set Ready (DSR) CC 107 X
7 Signal Ground (SG) AB 102 — —
8 Carrier Detect (CD) CF 109 X
15 Serial Clock Transmit
(SCT) DB 114 X
17 Serial Clock Receive
(SCR) DD 115 X
18 Local Loopback (LL) LL 141 X
20 Data Terminal Ready
(DTR) CD 108.2 X
21 Remote Loopback (RL) RL 140 X
23 Data Rate Selector (DRS) CH/CI 111/112 X
24 External Transmit Clock
(ETC) DA 113 X
25 Test Mode (TM) TM 142 X
Table 150
RS-232 interface pin assignments (Part 2 of 2)
Pin Signal name
EIA
circuit
CCITT
circuit
DTE DCE