Filter
Top Products
Pin Assignments
C-93610-A2-GB41-60 March 1999
Table C-3
60-Position High-Density Connector (TDM/MCMP Ports 2 through 6 for Model 3611 DSU)
Pin (Ports 2–6)
1
Circuit Name
F nction
2 3 4 5 6 EIA-232
2
CCITT
Function
14 41 32 20 57 BA 103 Transmit Data (TXD)
49 13 35 43 28 BB 104 Received Data (RXD)
19 9 33 23 58 CA 105 Request-to-Send (RTS)
48 1 34 51 56 CB 106 Clear-to-Send (CTS)
46 4 42 50 26 CC 107 Data Set Ready (DSR)
8 18 30 12 24 AB 102 Signal Ground (SG)
11 3 10 21 25 CF 109 Received Line Signal Detect
(LSD)
22
3
5
3
37
3
15
3
29
3
CI 112 Data Signal Rate Selector I
— DCE Source
45 40 36 44 55 DB 114 Transmitter Signal Element Timing
— DCE Source
47 2 31 52 27 DD 115 Receiver Signal Element Timing
— DCE Source
16 7 39 54 59 CD 108.2 Data Terminal Ready (DTR)
17 6 38 53 60 DA 113 Transmitter Signal Element Timing
— DTE Source
1
The 60-pin high-density connector provides five EIA-232 interfaces. (Connector pin locations are shown in
Figure C-3.)
2
EIA-232 refers to EIA-232-D without the loopbacks and ring indicator.
3
In TDM mode, if External Lead is configured for Rate (Ext Leads: Rate), then this lead is used for speed
selection on a port connecting to an analog private line (APL) extended circuit when the DDS backbone
goes into backup. This pin signals the APL modem to fall back to the predetermined backup speed if the
APL modem has fallback capability.