Installation guide

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Cisco 6260 Hardware Installation Guide
OL-2365-02
Chapter 1 Product Overview
Cisco 6260 System Overview
Figure 1-19 E3 I/O Module
Note For hardware specifications for the E3 I/O module, see the I/O Module section on page A-11.
1.2.4.2 E1 I/O Module Overview
The E1 I/O module provides eight E1 interfaces that can be allocated as either individual E1 network
trunk or subtend interfaces, or as IMA group trunk or subtend interfaces. The E1 I/O module also
provides the alarm pinouts and BITS clock input circuits for the Cisco 6260 system.
The E1 I/O module works with the DS3+T1/E1 IMA NI-2 card in the Cisco 6260 chassis.
Figure 1-20 shows a close-up of the E1 I/O module.
44751
PEM 1/PEM 2
AUD_CRIT/AUD_MAJ
AUD_MIN/VIS_CRIT
VIS_MAJ/VIS_MIN
STAT_ALARMS
BITS_A/BITS_B
60V
0.5 A MAX
L
O
G
IC
IN
P
U
T
S
B
IT
S
C
L
O
C
K
RX
TX
P1
RX
TX
P2
RX
TX
P3
1
3
2
1
E3 75-ohm coaxial BNC connectors. The P1
RX and TX connectors serve as the network
trunk interface. 3
Six rows of six wire-wrap pins that support
CO alarm relay interfaces and BITS clock
input circuits.
2
E3 75-ohm coaxial BNC connectors. The P2
and P3 RX and TX connectors serve as
subtend connectors to additional chassis.