WAN Modules
Page 3-26
WAN Serial Port Speciļ¬cations (cont.)
X.21/X.26 V.35 RS232
Generic
Signal Name
Source Mnemonic Pin Mnemonic Pin Mnemonic Pin
Shield -- -- 1 -- A -- 1
Signal Ground -- G 8 102 B AB 7
Transmitted
Data
DTE T(A) 2 103(A) P BA 2
T(B) 9 103(B) S
Received Data DCE R(A) 4 104(A) R BB 3
R(B) 11 104(B) T
Transmit Clock DCE -- -- 114(A) Y DB 15
114(B) AA
Receive Clock DCE S(A) 6 115(A) V DD 17
S(B) 13 115(B) X
Ext. Transmit
Clock
DTE B(A) 7 113(A) U DA 24
B(B) 14 113 W
Request To
Send
DTE C(A) 3 105 C CA 4
C(B) 10
Clear To Send DCE -- -- 106 D CB 5
Data Set Ready DCE -- -- 107 E CC 6
Data Terminal
Ready
DTE -- -- 108 H CD 20
Data Carrier
Detect
DCE I(A) 5 109 F CF 8
I(B) 12
Local Loopback DTE -- -- 141 L LL 18
Remote
Loopback
DTE -- -- 140 N RL 21
Ring Indicator DCE -- -- 125 J CE 22
Test Mode DCE -- -- 142 NN TM 25
Cable Type 4 -- n/c n/c
Cable Type 3 -- n/c n/c
Cable Type 2 --
Cable Type 1 --
Cable Type 0 --
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