ADTRAN SLC-5 U-BR1TE III Physical Requirements, Interface Requirements, Switch Option Settings

NOTE

When the U-BR1TE III is optioned for B1 or B2, the SLC-2000 slot must be provisioned for D only. If the U-BR1TE III is optioned for 2B, then the SLC-2000 slot must be provisioned for B1+D.

Physical Requirements

The U-BR1TE III occupies one physical slot in the SLC-5 or SLC-2000 channel bank. The backplane pin assignments are illustrated in Figure 3.

Interface Requirements

The U-BR1TE III unit includes two interfaces. The loop-side interface is an ISDN U-interface which is used to deliver Basic Rate service. The carrier-side interface is a SLC-5 or SLC-2000 channel bank interface which is used to insert data into the 1.544 Mbps T1 stream. Only the polarity insensitive Tip and Ring leads are used in the cross-connection.

Switch Option Settings

See Figure 1 and Figure 4 for SW1 and SW2 location. The options for SW1 and SW2 are described in Table 2.

+5 S	25	50	+5 S
	24	49	-5 V
+5R	23	48	NSYNC
+5R	22	47	CTPCM
GND	21	46	CRPCM
GND	20	45	NPE
GND	19	44	4 MHz
DCU	18	43	NQ
GND	17	42	NP0
NSR	16	41	MSG
DCU	15	40	NMP
8 KHz	14	39	NMQ
GND	13	38	64 KHz
	12	37
	11	36
CHTR	10	35
CHTT	9	34
LPTR	8	33
LPTT	7	32	RING *
	6	31	TIP *
	5	30
	4	29
	3	28
RG	2	27
FRGRD	1	26	-48 V

*2B1Q Signal Terminal

Figure 3. Backplane Pin Assignments

LULT		ON							ZBSENA
(RT)						B1	B2	D		PWR
		ADJ				O 1	2	3	4	5
	1	2				N
O
N								ZBS DIS
SW2
LUNT		TANDEM
(COT)
LULT	ON	B1	B2	D	ZBS ENA	PWR
(RT)	ADJ	O 1	2	3	4	5
O 1	2
N
LUNT	TANDEM	N
(COT)
		SW1		ZBS DIS

Figure 4. SW1 and SW2 Labeling

4 Section 61102040L4-5, Issue 2 61102040L4-5B