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152-402-145-02, Issue 2 Front Panel
H2TU-R-402 June 16, 2000 3
FRONT PANEL
Figure 1 shows the H2TU-R-402 List 4E front panel. Table 1 on page 4 describes the front-panel components. For
pinout diagrams of the H2TU-R card-edge connector and craft port, refer to “Appendix A - Specifications” on
page 31.
Figure 1. H2TU-R-402 List 4E Front Panel
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
H
D
S
L
2
H
2
T
U
*
R
4
0
2
D
S
1
IN
BRG
OUT
RS-232
DCE
HiGain
Alarm LED
Loopback LED
CLEI/ECI bar code label
Loop LED
DS1 framing LEDs
DS1 line code LEDs
Craft port (RS-232)
Loopback pushbutton
Extraction handle
DS1 bridging (BRG) jacks
Configuration number label
(inside handle)
4E
List number
Sealing current (SCURR) switch
(at rear of circuit board)