Synchronous/Asynchronous Serial Interface Cables - Huawei AR1200-S Series Hardware Description

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
Item
Gauge
Cores

6.8 Synchronous/Asynchronous Serial Interface Cables

This section describes the categories, structure, and technical specifications of the synchronous/
asynchronous serial interface cable.
Introduction
A synchronous/asynchronous serial interface cable is connected as follows:
l
l
Cable Category
Verify that devices are connected using appropriate synchronous/asynchronous serial interface
cables. Appropriate cable type is determined based on device connection mode (such as
synchronous/asynchronous and DTE/DCE modes), signals used by the connected device, baud
rate, and clock.
Table 6-16
Table 6-16 Categories of synchronous/asynchronous serial interface cables
Cable
V.24 DTE cable
V.24 DCE cable
V.35 DTE cable
Issue 03 (2012-04-20)
The DB28 connector is connected to the DB28 port on a card.
Another end depends on the connected device:
– If the wide area network (WAN) uses the DDN line, the cable is connected to the CSU/
DSU.
– If the WAN uses the dial-up line, the cable is connected to the modem.
CAUTION
lists the categories of synchronous/asynchronous serial interface cables.
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Description
l E1 75-ohm unbalanced coaxial cable: 30 AWG
l E1 120-ohm or T1 100-ohm balanced twisted pair
cable: 26 AWG
l E1 75-ohm unbalanced coaxial cable:
SYFVZP-75-1-1*4
l E1 120-ohm or T1 100-ohm balanced twisted pair
cable: SEYVP-120
Local End Connector
DB28 connector
Network-side Connector
DB25 (male) connector
DB25 (female) connector
DB28 (male) connector
6 Cables
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