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Knowledge Base > WAN Cards (T1/E1 and V.35) > Are V.35 serial interfaces supported?

Are V.35 serial interfaces supported?

Yes. A V.35 physical interface can be used in your test host using a serial card (S5141) from Sangoma. Normally, the V.35 interface should be connected to a CSU/DSU device.

The V.35 serial card is configured is configured in the same fashion as the T1/E1 card.

  • The WAN protocol is configured to CHDLC
  • The network protocol is configured to HDLC Streaming

In the case of connecting to a CSU/DSU, the clock setting should be set to external.

Here is an example wanpipe1.conf file: 


#================================================
# WANPIPE1 Configuration File
#================================================
#
# Date: Tue Apr 20 18:19:52 EDT 2004
#
# Note: This file was generated automatically
#       by /usr/sbin/wancfg program.
#
#       If you want to edit this file, it is
#       recommended that you use wancfg program
#       to do so.
#================================================
# Sangoma Technologies Inc.
#================================================

[devices]
wanpipe1 = WAN_CHDLC, Comment

[interfaces]
wp1chdlc = wanpipe1, , API, Comment

[wanpipe1]
CARD_TYPE 	= S51X
S514CPU 	= A
AUTO_PCISLOT	= NO
PCISLOT 	= 7
PCIBUS		= 2
Firmware	= /etc/wanpipe/firmware/cdual514.sfm
CommPort	= PRI
Receive_Only	= NO
Connection	= Permanent
LineCoding	= NRZ
LineIdle	= Flag
Interface 	= V35
Clocking 	= External
BaudRate 	= 1540000
MTU 		= 1522
UDPPORT 	= 9000
TTL 		= 255
IGNORE_FRONT_END  = NO

[wp1chdlc]
MULTICAST		= YES
IGNORE_DCD		= YES
IGNORE_CTS		= YES
IGNORE_KEEPALIVE	= YES
HDLC_STREAMING		= YES
KEEPALIVE_TX_TIMER	= 10000
KEEPALIVE_RX_TIMER	= 11000
KEEPALIVE_ERR_MARGIN	= 5
SLARP_TIMER		= 0
TRUE_ENCODING_TYPE	= NO