7705 SAR Interfaces
40
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
3.1.3.2.6 8-port Voice & Teleprotection Card
On the 8-port Voice & Teleprotection card, channelization is supported down to the
DS0 level. To change port types, all ports must first be shut down. The ports can be
configured for DS1 (T1) or E1 operation. All ports on the card must be either T1 or
E1; there cannot be a mix of the two types. When the first port is configured on a card,
all other ports on the card must be set to the same type.
Channelization is supported on the two codirectional G.703 ports and two IEEE
C37.94 teleprotection interface ports.
3.1.3.2.7 12-port Serial Data Interface Card
The 12-port Serial Data Interface card has four connectors, which support three
serial data ports each. Each port grouping may be configured for V.35, RS-232, or
X.21 operation. When a port has been configured for a specific interface type, the
other two ports in that same grouping can only be configured for the same type.
The card also supports an RS-530 interface with the use of an adapter cable that
connects to a DB15 connector on the front of the X.21 distribution panel. There is no
configuration specifically for the RS-530 interface; configuration is done in X.21
mode and applies to the RS-530 interface when it is physically enabled through
hardware.
All X.21 functionality is available on the RS-530 interface, except that only DCE
operation is supported for RS-530. However, because X.21 does not support all the
control leads available for RS-530, only a subset of the RS-530 control leads are
supported.
Channelization on the 12-port Serial Data Interface card is supported down to the
DS0 level.
3.1.3.2.8 4-port T1/E1 and RS-232 Combination Module
T1/E1 ports on the 4-port T1/E1 and RS-232 Combination module (supported on the
7705 SAR-H) support channelization down to the DS0 level. To change port types,
all ports must first be shut down. The ports can be configured for DS1 (T1) or E1
operation. All ports on the module must be either T1 or E1; there cannot be a mix of
the two types. When the first port is configured on a module, all other ports on the
card must be set to the same type.
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