Nortel NT1R20 Description page 156

Page 132 of 290
Physical description
Card connections
Faceplate
553-3001-105 Standard 5.00 June 1999
NT5D33 and NTRB34 Line-side E1 Interface Cards
The LEI mounts in two consecutive card slots in the IPE shelf and uses 16
channels on the first slot and 14 channels on the second. The LEI includes a
motherboard (31.75 by 25.40 cm. (12.5 by 10 in.) and a daughterboard (5.08
by 15.24 cm. (2 by 6 in.)
The LEI uses the NT8D81AA Tip and Ring cable to connect from the IPE
backplane to the 25-pair Amphenol connector on the IPE input/output (I/O)
panel. The I/O panel connector connects to a E1 line, external alarm and an
MMI terminal or modem, using the NT5D35 or NT5D36 Line-side I/O cable
available from Nortel Networks.
The LEI faceplate is twice as wide as the other standard analog and digital
line cards, thereby occupying two card slots. The LE1 faceplate has four
LEDs. See Figure 32 (IPE version), and Figure 33 (Option 11 and small
remote cabinet version.)
The LEDs give status indications on the operations as described in Table 31:
Table 31
Line-side E1 card LED operation
LED
Status
Red alarm
Yellow alarm
Maint
Operation
Line card
E1 near end
E1 far end
Maintenance